A very New York type to be is the person who always talks about the great museums and culture available in the city but never visits any of it. I think it was probably four years I'd lived in the city before I even set foot in MoMA. It's really easy to live here and never, ever, ever do the guidebook things, the Empire State Building things. And sometimes it's fine to pass it up (I can probably live without Katz's pastrami, what with the whole how it's not made of vegetables thing), and sometimes you're just cheating yourself.
I went to the Cloisters for the first time for the Fourth of July a couple of years ago. Saturday, I went back. This time with Shannon, Chris, and Liz. It was a really beautiful day, which is the only sort of day to visit the Cloisters -- they're stationed way up top of Manhattan, near Washington Heights, and they're surrounded by Fort Tryon Park, a great big beautiful park with gardens.
The Cloisters themselves are probably great to visit alone...there are a lot of places to sit and wander and think and pretend you're a monk. We took the bus and therefore made it just 40 minutes before closing -- enough time to peek at the unicorn tapestries and check out some of the gardens. Afterward, we sat on the grass and tried to figure out if any of us were still capable of doing somersaults.