If you are into medieval architecture and religious artifacts, the Cloisters Museum is a must do for NYC. This is one of the three Met Museums, truthfully mimicking a serene medieval monastery that makes you feel like traveling back centuries. The views around and from the Cloisters are wonderful.
9.30am--13.00pm 浏览Cloisters,不懂宗教,但喜欢这个精致的展览就多逗留了一回,顺便听了一会小学生(or 幼儿班)在里面上的课,很有趣