Se llama Labor y está en Omaha.

Two hundred-fifty tons of cement and 39,000 pounds of steel were used to create a towering monument to union labor that overlooks the city of Omaha on the banks of the Missouri River. The $600,000 sculpture titled “Labor” features workers cast in bronze who represent the diverse legions of union laborers who helped build the riverfront city....The three-story sculpture anchors a riverfront park that includes a pedestrian walkway.

Yo andaba buscando el monumento al fundidor desconocido o algo parecido (Ya en inglés, que en castellano se me había acabado ) Menos mal que has dado la pista.