Long after Green-Wood’s gates close to the public, explore its historic grounds under the cover of night. You’ll weave through the Cemetery’s stunning landscape and visit the graves of fascinating figures in New York and American history. This not-to-be-missed walking tour ends with a visit to the Catacombs, which are normally closed to the public. $30/ $25 for members. There are no paper or e-tickets. Attendees will be checked in by name. The walk is over hilly and uneven terrain, comfortable footwear is encouraged.