In spite of this, the Gothic Revival continued to exert its influence, simply because many of its more massive projects were still being built well into the second half of the 20th century, such as Giles Gilbert Scott's Liverpool Cathedral and the Washington National Cathedral (1907–1990). Ralph Adams Cram became a leading force in American Gothic, with his most ambitious project the Cathedral of St. John the Divine in New York (claimed to be the largest cathedral in the world), as well as Collegiate Gothic buildings at Princeton University. Cram said "the style hewn out and perfected by our ancestors become ours by uncontested inheritance".