This monument was the last stop on our New York City Slavery and Underground Railroad Tour and, since it was the same end of the tour, we decided to go into the museum. I'm so glad we did. We arrived just in time to join a park ranger guided tour of the artwork in the lobby. Wow! Such profound and moving art! When that finished, we walked around the museum. I'd never heard the story that led to the creation of the monument and museum in this sacred place, despite the long-buried cemetery being discovered in 1989. If you're in the city, you MUST visit. This part of the history of NYC should not be forgotten.