Our guide, Ray, was really passionate about giving us a great experience. He had a wealth of knowledge about New York, the buildings - not just those that burned, but also those in the area that were spared or served functional purposes during the aftermath - the culture, business and finance, and the emotions of the day. It was like listening to a college professor, writer, and an advocate for all the heroes, rolled into one person. We could visualize what the area looked like, the day of the tragedy, the history leading up to it, and the aftermath. Our guide had anecdotes and details for every item in the tour, from the Pools to the Oculus and the Survivors Tree. I discovered why I always still cry when I see a specific angle of the towers burning, and the emotions that stay with us. The museum gives you pause. You see some of the actual metal beams, twisted and burned, and it gives you pause. The observation tower is magnificent. And the creators use technology in a brilliant way to give the most profound experience.