Experience the dark side of the National Building Museum Take a nighttime tour of the National Building Museum's historic home. Guests will wander the dark and lonely halls by lantern light, being regaled by ghost stories and other curious tales. Who are the mysterious figures wandering the halls after hours? What causes the giant columns to swirl with ghostly figures? Also learn about a gruesome murder and sinister characters immortalized in sculptural busts. This tour is recommended for ages 10 and up. Tickets are limited and sell out quickly. Questions? Email: tours@nbm.org - Hours Monday–Saturday: 10 am–5 pm Sunday: 11 am–5 pm The Building Zone closes at 4 pm. Admission Free access to the Great Hall, historic building tours, Museum Shop, & cafe. Exhibition admission: $8 for adults $5 for youth, students, & seniors $3 a person for Building Zone only Free for Museum members.