Grace Cathedral is the cathedral church of the Episcopal Diocese of California, sited atop Nob Hill in San Francisco on land donated by the Crocker family. Its predecessor building was destroyed in the 1906 San Francisco earthquake and fire; the present French Gothic cathedral, designed by Lewis P. Hobart, was begun in 1928 and completed in 1964 as the third-largest Episcopal cathedral in the United States. Grace Cathedral is known for its labyrinths, stained glass, and ongoing interfaith and social-justice programming.