North Shore in Pittsburgh in Allegheny County, Pennsylvania — The American Northeast (Mid-Atlantic)
"Piazza Lavoro" and "Mythic Source," 1984
Ned Smyth (American, born 1948)
| | Aggregate and marble mosaic; Commissioned by the Heinz family and H.J. Heinz Company | |

Photographed by Devry Becker Jones (CC0), September 10, 2020
1. "Piazza Lavoro" and "Mythic Source," 1984 Marker
This two-part sculpture recognizes the significant contributions of Pittsburgh and to American labor history by a symbolic representation of labor's role in our nation's development. The human figures populating the facades are engaged in this activity, while the palm trees and marine life are reminders of the delicate balance between civilization and nature.
On the upper level, "Piazza Lavoro" suggests the heights to which civilization may be elevated. On the lower level, "Mythic Source" refers to life's aquatic origins and the sustaining powers of the water.
Collection of Museum of Art, Carnegie Institute
Erected by City of Pittsburgh, Pennsylvania.
Topics. This historical marker is listed in these topic lists: Industry & Commerce • Labor Unions • Natural Resources • Settlements & Settlers.
Location. 40° 26.844′ N, 80° 0.169′ W. Marker is in Pittsburgh, Pennsylvania, in Allegheny County. It is in North Shore. It can be reached from Isabella Street just west of Vulcan Way, on the left when traveling west. Touch for map. Marker is at or near this postal address: 2 Isabella St, Pittsburgh PA 15212, United States of America. Touch for directions.
Regionally, this marker is in the American Northeast, in the Mid-Atlantic, in the Ohio River Valley, in Appalachia, and specifically in Northern Appalachia. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Viceroyalty of New France, the Haudenosaunee (Iroquois) Confederacy, and one of the original Thirteen Colonies.
Other nearby markers. At least 8 other markers are within walking distance of this marker: "The Forks," 1984 (within shouting distance of this marker); Allegheny Cotton Mill Strikes (within shouting distance of this marker); Allegheny City (within shouting distance of this marker); "Pittsburgh Variations," 1984 (within shouting distance of this marker); "The Great One" (about 400 feet away, measured in a direct line); Frederick J Osterling Office & Studio (about 600 feet away); Timber Court (about 600 feet away); Seventh Street Bridge (approx. 0.2 miles away). Touch for a list and map of all markers in Pittsburgh.

Photographed by Devry Becker Jones (CC0), September 10, 2020
2. "Piazza Lavoro" and "Mythic Source," 1984 Marker
Credits. This page was last revised on February 2, 2023. It was originally submitted on September 13, 2020, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 1,310 times since then and 107 times this year. Photos: 1, 2. submitted on September 13, 2020, by Devry Becker Jones of Washington, District of Columbia.