100 Federal Street

100 Federal Street is a skyscraper in Boston's Financial District with 37 floors and a height of roughly 180 meters. Its distinctive form features protruding floors in the lower levels with extensive glass panels that allow views toward the harbor and Charles River.

The architects Campbell, Aldrich & Nulty designed the structure in 1971 using the Streamline Moderne style, initially serving as the First National Bank's headquarters. The project emerged during a period when Boston sought to modernize and display its economic power through the skyline.

It functions as a working center for finance and business professionals who move through its spaces daily. The modern glass and steel exterior reflects the economic importance that Boston holds in the region.

The building sits centrally in the Financial District near Post Office Square Park and is easily accessible by public transit. The surrounding streets make it simple for visitors to navigate and explore the area.

The structure earned the local nickname 'The Pregnant Building' due to its unusual form with floors that bulge outward dramatically in the lower sections. This distinctive silhouette makes it instantly recognizable in Boston's skyline.

Location: Massachusetts

Inception: 1971

Architects: Campbell, Aldrich & Nulty

Architectural style: Streamline Moderne

Floors above the ground: 37

Height: 180.14 m

GPS coordinates: 42.35500,-71.05620

Latest update: December 8, 2025 19:42