Gothic architecture
Sens Cathedral (begun between 1135 and 1140) was the first Cathedral to be built in the new style (St. Denis was an abbey, not a Cathedral). Other versions of the new style soon appeared in Noyon Cathedral (begun 1150); Laon Cathedral (begun 1165); and the most famous of all, Notre-Dame de Paris, where construction had begun in 1160.
Collegiate Gothic
At the University of Pittsburgh, Charles Klauder was presented with a limited site and opted for verticality. The Cathedral of Learning (1926–37), a steel-frame, limestone-clad, 42-story skyscraper, is the world's second tallest university building and second tallest Gothic-styled building. It has been described as the literal culmination of late Gothic Revival architecture. The tower contain a half-acre Gothic hall whose mass is supported only by its 52-foot (16 m) tall arches. It is accompanied by the campus's other Gothic Revival structures by Klauder, including the Stephen Foster Memorial (1935–1937) and the French Gothic Heinz Memorial Chapel (1933–1938).