Beautifully preserved and bucolic escape from the city. Love the early music concerts around Christmas and Easter time. Cons: As everyone else says, it's far out from the city center. You have to take a subway and a bus. But worth it.
Excellent medieval art collection housed in a building that makes you think you really are in Italy or France. Nice setting overlooking the Hudson. Interesting period concert series. Cons: A little out of the way.