Chicago has hosted the most United States presidential nominating conventions (14 Republican National Conventions and 11 Democratic National Conventions, in addition to one notable Progressive Party assembly). The 1860 Republican National Convention (the second Republican National Convention) was held at the Wigwam. The 1864 Democratic National Convention was hosted in a different "Wigwam" built for the convention as a semicircular roofed amphitheater. These were the first Chicago visits for each party's national convention. Baltimore has hosted 10 and Philadelphia has hosted 9. The 1868 Republican National Convention returned to Chicago, but it was located at the Crosby Opera House. The 1892 Democratic National Convention convened in a temporary "Wigwam" in Lake Park for Grover Cleveland's third nomination.