How was your experience?
In a city filled with some of the world's most unique and fascinating museums (of art, architecture, fashion, science, history, etc.), this may well be the most disappointing. The highlight of this relatively small museum (far too small in size and scope for the world's greatest city) is a 22-minute video presentation. But I can spend as much time reading Wikipedia or find a video anywhere on the web and learn this cursory history of the city. No need to sit in a museum to watch a video. The largest exhibit is a temporary exhibit celebrating the life of Broadway star Joel Gray & his (mostly ordinary) photography. Why? I learned very little from this museum and I saw almost nothing worth shlepping up to the Upper East Side for. Mercifully, it only took a little over an hour to visit the entire place. (One room was "closed for renovation". Perhaps that is where the best stuff is normally displayed.)