Overview
- The underground oath will be followed by a public inauguration outside City Hall later the same day.
- Mamdani is set to become New York City's first Muslim mayor and, at 34, its youngest since 1892.
- Old City Hall station opened in 1904 and closed in 1945, famed for Rafael Guastavino's vaulted tile arches.
- Access to the site is limited to New York Transit Museum member tours, with tickets costing $50 and the next sales window opening Jan. 14, 2026 at 10 a.m.
- The station was decommissioned in part because its curved platform created a hazardous gap with longer trains, though the 6 train still passes the platform.