Built two decades after City Hall and the Masonic Temple (see the Douglas/Sixth Street Walking Tour), from 1914 to 1921, Ilfeld Auditorium on the campus of New Mexico Highlands University was Las Vegas' last great expression in monumental sandstone. Las Vegas business tycoon Charles Ilfeld contributed funds to build this lovely auditorium in memory of his wife, Adele. This dignified building is New Mexico's finest example of the Romanesque revival style, typified by the heavy Roman arches and simple Tuscan columns. In form and organizations, the purplish-sandstone facade is derived from Early Christian basilica prototypes.