101 ► Pennsylvania, Allegheny County, Pittsburgh, Cultural District — The Pittsburgh Agreement —

On 7th Street at Penn Avenue, on the right when traveling south on 7th Street.

102 ► Pennsylvania, Allegheny County, Pittsburgh, Deutschstown Historic District — Pauline H. Rosenberg — (1863-1940) —

On Lockhart Street at Moravian Way, on the left when traveling west on Lockhart Street.

103 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Allegheny County —

Near Grant Street at Forbes Avenue.

104 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Bethel A.M.E. Church —

On First Avenue at Smithfield Street, on the right when traveling west on First Avenue.

105 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Founding of the Ironworkers Union —

On Grant Street at 1st Avenue, on the right when traveling north on Grant Street.

106 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Henry Clay Frick — (1849-1919) —

On Grant Street at Fifth Avenue, in the median on Grant Street.

107 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — John Scull — (1765-1828) —

On Boulevard of the Allies at Market Street, on the right when traveling east on Boulevard of the Allies.

108 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Kier Refinery —

Near Bigelow Boulevard at 7th Avenue.

109 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Martin R. Delany — (1812-1885) —

On 3rd Avenue near Market Street, on the right when traveling east.

110 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Pittsburgh Chinatown —

On Third Avenue west of Ross Street, on the left when traveling west.

111 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Pittsburgh Plate Glass Company —

Near Fourth Avenue near Market Street.

112 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Steamboat "New Orleans" —

On First Avenue at Try Street, on the right when traveling east on First Avenue.

113 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — United Steelworkers of America —

On Fourth Avenue at Grant Street, on the right when traveling east on Fourth Avenue.

114 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Westinghouse Electric Corporation —

Near Boulevard of the Allies at Stanwix Street.

115 ► Pennsylvania, Allegheny County, Pittsburgh, Downtown — Work Accidents and the Law — (1910) —

Near Market Square near Market Street, on the left when traveling east.

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116 ► Pennsylvania, Allegheny County, Pittsburgh, East Allegheny — Avery College —

On East Ohio Street at Nash Street, on the right when traveling east on East Ohio Street.

117 ► Pennsylvania, Allegheny County, Pittsburgh, East Liberty — 1st Drive-In Filling Station —

On Baum Boulevard (Pennsylvania Route 380) at South St. Clair Street, on the right when traveling east on Baum Boulevard.

118 ► Pennsylvania, Allegheny County, Pittsburgh, Fairywood — Pittsburgh —

On West Steuben Street (Pennsylvania Route 60) at Woodmere Drive, on the right when traveling east on West Steuben Street.

119 ► Pennsylvania, Allegheny County, Pittsburgh, Greenfield — Simon Girty — (1741-1818) —

On Beechwood Boulevard at Federal Hill Street, on the right when traveling north on Beechwood Boulevard.

120 ► Pennsylvania, Allegheny County, Pittsburgh, Highland Park — Billy Eckstine — (1914-1993) —

On Bryant Street just east of North Euclid Avenue, on the right when traveling west.

121 ► Pennsylvania, Allegheny County, Pittsburgh, Homewood West — William "Billy" Strayhorn — (1915-1967) —

On North Murtland Street, 0 miles north of Monticello Street, on the right when traveling south.

122 ► Pennsylvania, Allegheny County, Pittsburgh, Larimer — Mary Lou Williams — (1910-1981) —

On Frankstown Avenue, on the right when traveling west.

123 ► Pennsylvania, Allegheny County, Pittsburgh, Lawrenceville — Shannopin Town —

On 40th Street at Foster Street, on the left when traveling north on 40th Street.

124 ► Pennsylvania, Allegheny County, Pittsburgh, Lincoln-Lemington-Belmar — National Negro Opera Company —

On Apple Street, 0.1 miles west of Stranahan Street, on the right when traveling west.

125 ► Pennsylvania, Allegheny County, Pittsburgh, Lower Lawrenceville — Allegheny Arsenal —

On 40th Street, 0.2 miles south of Butler Street, on the right when traveling south.

126 ► Pennsylvania, Allegheny County, Pittsburgh, Lower Lawrenceville — Johnny Unitas — (1933-2002) —

On Butler Street at 40th Street, on the right when traveling east on Butler Street.

127 ► Pennsylvania, Allegheny County, Pittsburgh, Lower Lawrenceville — Pittsburgh Grease Plant —

On Smallman Street, 0.1 miles east of 33rd Street, on the right when traveling west.

128 ► Pennsylvania, Allegheny County, Pittsburgh, Lower Lawrenceville — Stephen C. Foster —

On Penn Avenue at 36th Street, on the right when traveling east on Penn Avenue.

129 ► Pennsylvania, Allegheny County, Pittsburgh, Middle Hill — Art Blakey — (1919-1990) —

On Chauncey Street, 0 miles north of Wylie Avenue, on the right when traveling south.

130 ► Pennsylvania, Allegheny County, Pittsburgh, Middle Hill — Crawford Grill —

On Wylie Avenue at Elmore Avenue, on the right when traveling west on Wylie Avenue.

131 ► Pennsylvania, Allegheny County, Pittsburgh, Middle Hill — Joshua (Josh) Gibson — (1911-1947) —

On Bedford Avenue.

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132 ► Pennsylvania, Allegheny County, Pittsburgh, Mount Washington — First Mining of Pittsburgh Coal —

On Grandview Avenue, 0 miles west of Bertha Street, on the right when traveling west.

133 ► Pennsylvania, Allegheny County, Pittsburgh, Neville Township — Dravo Corporation Shipyard —

Near Grand Avenue at Phillips Avenue.

134 ► Pennsylvania, Allegheny County, Pittsburgh, North Oakland — Andrew Carnegie — (1835-1919) —

Near Schenley Drive Extension.

135 ► Pennsylvania, Allegheny County, Pittsburgh, North Oakland — Jane Holmes — (1805-1885) —

On Bayard Street at North Bellefield Street, on the right when traveling west on Bayard Street.

136 ► Pennsylvania, Allegheny County, Pittsburgh, North Oakland — Standard Chemical Company —

On O'Hara Street at Thackeray Street, on the right when traveling west on O'Hara Street.

137 ► Pennsylvania, Allegheny County, Pittsburgh, North Oakland — Stephen C. Foster Memorial —

Near Forbes Avenue at Schenley Drive Extension, on the left when traveling east.

138 ► Pennsylvania, Allegheny County, Pittsburgh, North Oakland — University of Pittsburgh —

On Fifth Avenue at Bigelow Boulevard, on the right when traveling east on Fifth Avenue.

139 ► Pennsylvania, Allegheny County, Pittsburgh, North Oakland — V.F.W. —

On Fifth Avenue at Bigelow Boulevard, on the right when traveling east on Fifth Avenue.

140 ► Pennsylvania, Allegheny County, Pittsburgh, North Oakland — Victor Herbert — (1859-1924) —

On Forbes Avenue west of South Bellefield Avenue, on the right when traveling east.

141 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — Allegheny Cotton Mill Strikes —

142 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — First Professional Football Game —

Near North Shore Drive at Art Rooney Avenue.

143 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — First World Series —

On West General Robinson Street at Tony Dorsett Drive, on the right when traveling east on West General Robinson Street.

144 ► Pennsylvania, Allegheny County, Pittsburgh, North Shore — Three Rivers Stadium —

On Art Rooney Avenue at North Shore Drive, on the left when traveling north on Art Rooney Avenue.

145 ► Pennsylvania, Allegheny County, Pittsburgh, Oakland — Barney Dreyfuss — (1865-1932) —

On Roberto Clemente Drive, 0.1 miles east of South Bouquet Street, on the right when traveling east.

146 ► Pennsylvania, Allegheny County, Pittsburgh, Oakland — Forbes Field —

On Roberto Clemente Drive, 0.1 miles east of South Bouquet Street, on the right when traveling east.

147 ► Pennsylvania, Allegheny County, Pittsburgh, O'Hara Township — General Matthew B. Ridgway — (1895-1993) —

Near Field Club Road.

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148 ► Pennsylvania, Allegheny County, Pittsburgh, Old Allegheny Rows Historic District — Martha Graham — (1894-1991) —

On Brighton Road at California Avenue, on the right when traveling south on Brighton Road.

149 ► Pennsylvania, Allegheny County, Pittsburgh, Perry North — Allegheny Observatory —

On Riverview Avenue, 0.2 miles west of Perrysville Avenue (U.S. 19).

150 ► Pennsylvania, Allegheny County, Pittsburgh, Point Breeze North — Westinghouse Gas Wells —

On Thomas Boulevard at North Murtland Street, on the right when traveling west on Thomas Boulevard.

151 ► Pennsylvania, Allegheny County, Pittsburgh, Scott Township — Bower Hill —

On Kane Boulevard, 0.3 miles west of Bower Hill Road, on the left when traveling west.

152 ► Pennsylvania, Allegheny County, Pittsburgh, Shadyside — Shadyside Iron Furnace —

On Bayard Street at Amberson Avenue, on the right when traveling east on Bayard Street.

153 ► Pennsylvania, Allegheny County, Pittsburgh, South Oakland — Eliza Furnace — Three Rivers Heritage Trail —

Near Three Rivers Heritage Trail.

154 ► Pennsylvania, Allegheny County, Pittsburgh, South Oakland — Iron and Steel Workers — Three Rivers Heritage Trail —

Near Three Rivers Heritage Trail.

155 ► Pennsylvania, Allegheny County, Pittsburgh, South Oakland — Jones and Laughlin —

Near Three Rivers Heritage Trail.

156 ► Pennsylvania, Allegheny County, Pittsburgh, South Shore — Clinton Furnace —

Near West Station Square just east of Commerce Drive, on the right when traveling west.

157 ► Pennsylvania, Allegheny County, Pittsburgh, South Shore — John A. Roebling — (1806-1869) —

On Smithfield Street, 0.1 miles north of Carson Street, on the right when traveling south.

158 ► Pennsylvania, Allegheny County, Pittsburgh, South Shore — Pittsburgh Glass Works —

On West Carson Street (Pennsylvania Route 837), on the right when traveling south.

159 ► Pennsylvania, Allegheny County, Pittsburgh, South Side Flats — Polish Army —

On South 18th Street, 0 miles south of East Carson Street (Pennsylvania Route 837), on the right when traveling north.

160 ► Pennsylvania, Allegheny County, Pittsburgh, Squirrel Hill North — Station WQED —

On Fifth Avenue west of Devonshire Street, on the right when traveling east.

161 ► Pennsylvania, Allegheny County, Pittsburgh, Strip District — Charles Martin Hall — (1863-1914) —

On Smallman Street at 32nd Street, on the right when traveling west on Smallman Street.

162 ► Pennsylvania, Allegheny County, Pittsburgh, Strip District — Lewis and Clark Expedition —

On 11th Street at Fort Duquesne Boulevard, on the right when traveling west on 11th Street.

163 ► Pennsylvania, Allegheny County, Pittsburgh, Strip District — Pennsylvania Canal —

On Liberty Avenue, 0.1 miles east of 11th Street, on the right when traveling east.

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164 ► Pennsylvania, Allegheny County, Pittsburgh, Strip District — Railroad Strike of 1877 —

On Liberty Avenue at 28th Street, on the right when traveling east on Liberty Avenue.

165 ► Pennsylvania, Allegheny County, Pittsburgh, Strip District — Westinghouse Railroad Air Brake —

On Liberty Avenue at 25th Street, on the right when traveling west on Liberty Avenue.

166 ► Pennsylvania, Allegheny County, Pittsburgh, Terrace Village — Frank E. Bolden — (1912-2003) —

On Centre Avenue west of Francis Street, on the right when traveling east.

167 ► Pennsylvania, Allegheny County, Pittsburgh, Terrace Village — Robert Lee Vann — (1879-1940) —

On Centre Avenue near Francis Avenue.

168 ► Pennsylvania, Allegheny County, Pittsburgh, Troy Hill — Henry J. Heinz — (1844-1919) —

On 16th Street at Progress Street, on the right when traveling north on 16th Street.

169 ► Pennsylvania, Allegheny County, Pittsburgh, Troy Hill — St. Nicholas Roman Catholic Croatian Church, North Side —

Near Pennsylvania Route 28, 0.1 miles south of 31st Street Bridge.

170 ► Pennsylvania, Allegheny County, Pittsburgh, Uptown — Charles "Chuck" Cooper — (1926-1984) —

On Forbes Avenue near Magee Street, on the right when traveling north.

171 ► Pennsylvania, Allegheny County, Pittsburgh, Uptown — Duquesne University —

On McAnulty Dr. at Bluff St., on the left when traveling north on McAnulty Dr..

172 ► Pennsylvania, Allegheny County, Pittsburgh, Uptown — Mercy Hospital —

On Locust Street, on the right when traveling east.

173 ► Pennsylvania, Allegheny County, Pittsburgh, West Oakland — John T. Comès — (1873-1922)

On Fifth Avenue at Robinson Street, on the right when traveling west on Fifth Avenue. Reported permanently removed.

174 ► Pennsylvania, Allegheny County, Pittsburgh, West Oakland — Salk Polio Vaccine —

On Sutherland Drive at Terrace Street, on the left when traveling north on Sutherland Drive.

175 ► Pennsylvania, Allegheny County, Plum — Forbes Road — Bouquet's Breastworks —

On Old Frankstown Road (Pennsylvania Route 2066) 0.3 miles east of Center Road, on the right when traveling west.

176 ► Pennsylvania, Allegheny County, Ross Township, McKnight — First Aluminum Observatory Dome —

On McKnight Road (U.S. 19) at West View Avenue, on the right when traveling south on McKnight Road.

177 ► Pennsylvania, Allegheny County, Sewickley, Leet Township — D.T. Watson Home for Crippled Children —

On Camp Meeting Road, 0.1 miles north of Pilgrim Drive, on the right when traveling south.

178 ► Pennsylvania, Allegheny County, South Versailles Township, Coulter — Arthur J. Rooney — (1901-1988) —

On Tourman Street at Coulterville Road, on the right when traveling west on Tourman Street.

179 ► Pennsylvania, Allegheny County, Springdale — Carnegie Hero Fund Commission —

On Pittsburgh Street at Washington Street, on the right when traveling east on Pittsburgh Street.

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180 ► Pennsylvania, Allegheny County, Springdale — Rachel Carson —

On Pittsburgh Street at Colfax Street, on the right when traveling west on Pittsburgh Street.

181 ► Pennsylvania, Allegheny County, Stowe Township, McKees Rocks Bottoms — 1909 McKee's Rocks Strike —

On George Street at Nichol Avenue, on the right when traveling west on George Street.

182 ► Pennsylvania, Allegheny County, Stowe Township, McKees Rocks Bottoms — Presston —

On Ohio Street at Center Street, on the right when traveling north on Ohio Street.

183 ► Pennsylvania, Allegheny County, Tarentum — Chartier's Old Town —

Near East 1st Street.

184 ► Pennsylvania, Allegheny County, Turtle Creek — Radio Station KDKA —

On Braddock Avenue north of Electric Avenue, on the right when traveling north.

185 ► Pennsylvania, Allegheny County, West Mifflin — Braddock’s Crossing —

On North Duquesne Boulevard (Pennsylvania Route 837) at Hoffman Boulevard, on the right when traveling north on North Duquesne Boulevard.

186 ► Pennsylvania, Allegheny County, West Mifflin — Frederick Ingersoll — (1874-1927) —

On Kennywood Boulevard (Pennsylvania Route 837) at Hoffman Boulevard, on the right when traveling south on Kennywood Boulevard.

187 ► Pennsylvania, Allegheny County, West Mifflin — Kennywood Park —

Near Kennywood Boulevard (Pennsylvania Route 837) 0.1 miles west of Hoffman Boulevard.

188 ► Pennsylvania, Allegheny County, Wilkinsburg — Frank Conrad — (1874-1941) —

On Penn Avenue (Pennsylvania Route 8) at South Trenton Avenue, on the right when traveling east on Penn Avenue.

189 ► Pennsylvania, Armstrong County, Apollo — Nellie Bly — (1864-1922) —

On Terrace Avenue just north of North Fifth Street, on the right when traveling north.

190 ► Pennsylvania, Armstrong County, Brady's Bend — Brady's Bend Works —

On Pennsylvania Route 68, 0 miles west of Queenstown Road, on the right when traveling east.

191 ► Pennsylvania, Armstrong County, Cowansville — St. Patrick's Church —

On East Brady Road (Pennsylvania Route 268) at Pennsylvania Route 4007, on the right when traveling east on East Brady Road.

192 ► Pennsylvania, Armstrong County, Ford City — Pittsburgh Plate Glass Ford City Works —

On Third Avenue near 9th Street, on the right when traveling west.

193 ► Pennsylvania, Armstrong County, Kittanning — Armstrong County —

Near Market Street.

194 ► Pennsylvania, Armstrong County, Kittanning — Blanket Hill —

On Benjamin Franklin Highway (U.S. 422) 0.3 miles east of Simpson Church Road, on the right when traveling west.

195 ► Pennsylvania, Armstrong County, Kittanning — Kittanning —

On South Water Street (U.S. 422) 0.1 miles south of Willow Street, on the right when traveling west.

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196 ► Pennsylvania, Armstrong County, Kittanning — Kittanning —

On Benjamin Franklin Highway (U.S. 422) at Allegheny Avenue, on the right when traveling west on Benjamin Franklin Highway.

197 ► Pennsylvania, Armstrong County, Leechburg — Pennsylvania Canal — (Western Division) —

On Market Street (Pennsylvania Route 66), on the right when traveling north.

198 ► Pennsylvania, Armstrong County, Manorville — Fort Armstrong —

On Water Street at McClarren Street, on the right when traveling south on Water Street.

199 ► Pennsylvania, Beaver County, Aliquippa — NLRB v. Jones & Laughlin Supreme Court Ruling —

On Station Street east of Constitution Boulevard, on the left when traveling east.

200 ► Pennsylvania, Beaver County, Ambridge — Harmony Society Cemetery — 1824-1951 —

Near Church Street.

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