Cathedral of Learning

University of Pittsburgh
Pittsburgh, Pennsylvania
Structure: steel frame; Indiana limestone cladding
Completed 1937
Architect: Charles Z. Klauder
Style: Gothic Revival
Designated Historic Landmark in Pittsburgh

This 535-foot, 42-storey tower is the tallest educational building in the US, and the second-tallest educational building in the world. Construction began in 1926 but was delayed for many years by the Depression and lack of funding. After a campaign for donations from the general public, the building was finally completed and opened in 1937. The Indiana limestone cladding is carved with elaborate Gothic ornamentation.

Photo courtesy University of Pittsburgh, http://www.pitt.edu