Scheduled to reopen Sept. 19, 2019. Completed in 1884, 555-foot marble obelisk honoring George Washington, now the world’s tallest freestanding masonry structure. Elevator to museum and observation deck. Open daily. Free same-day tickets (required) for entry available at the Washington Monument Lodge (15th St. and Jefferson), 8:30 am-4:30 am (arrive early as tickets often run out). $1.50 for advanced reservations online.
Starting Oct. 10, 2019, 10 am: Advance tickets also available for entry starting Oct. 19 on, via www.recreation.gov or phone 877.444.6777.