http://www.metmuseum.org/
I've only been there twice before, so I'm very excited to view some exhibits I haven't seen yet.
After that I'll walk along fifth avenue to 49th street, where there's my favorite japanese sweets shop (http://www.kitchoan.com/E/index_b_natsu2004_e.html), and the japanese bookstore Kinokuniya (http://www.kinokuniya.com/). Gonna stock up on some more Black Jack.

I'll have pictures when I come back.