The Progress of Railroading is group of public artworks by American artist Louis Saint-Gaudens.
This series of six sculptures were cut by Andrew E. Bernasconi, a high-grade Italian stone workman, between 1909 and 1911.
The sculptures represent deities and Ancient Greek thinkers related to rail transport in the United States.
These granite sculptures are placed above three connected triumphal arches that make up the main entrance of the building.
Many people were consulted regarding what figures to have St. Gaudens sculpt including Charles W. Eliot, the former president of Harvard University.