I booked a last minute tour of the Natural History Museum today. I live in New York and actually work as a tour guide, but in that sort of busy and sometimes monotonous life-style, I rarely have time to actually go visit some of these sites. It was a small private group with only myself and one other family of 3 present. Ideal if you want a thorough and personal experience. Mark was an absolutely wonderful guide and gave us a brilliant tour of such a large, sometimes confusing, and awfully crowded museum. It wouldn't have been such a good experience doing it on ones own. Mark made it perfect by giving us the ideal balance of talking about the history, architecture, and the exhibits of the museum, also focusing on 3 main aspects: the dinosaurs (of course!), the wild life, and the underwater worlds - a great balanced combination. Just enough to make it worth your while and not too much to become and overdose of information. I would definitely recommend booking this tour with Mark, and I will make sure I book one of the Met Museum with him as well. Thank you so much!