100 Federal Street

Boston, United States

Exterior only

Visible from the street; the inside is private.

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ReferenceCTBUH Skyscraper Center↗

Located in Boston's Financial District, 100 Federal Street is a 37-story, 591-foot Streamline Moderne skyscraper designed by the architectural firm Campbell, Aldrich & Nulty and completed in 1971. Originally built as the First National Bank Building and later serving as world headquarters for Bank of Boston and FleetBoston Financial, the tower is Boston's 11th-tallest building and earned the nickname "the Pregnant Building" for its distinctive form. The building was purchased by Boston Properties in 2012 for $615 million, with Bank of America continuing as a major tenant under a long-term lease as part of its New England operations.