The Metropolitan Museum of Art is one of my favorite places to take visitors to. The Met is so big that it blows everyone away, it's just a great place to get lost in. Just take a look at From the Mixed-up Files of Mrs. Basil E. Frankweiler, still haven't read that book but my cousins were so excited to go to the Met after reading this book.
The Met is ridiculous gigantic. I don't think I have ever completely seen the whole museum in one visit. My favorite part has to be the Egyptian Temple and their rooftop deck that has a gorgeous view of Central Park.
Oh and I can't forget the Islamic Art, oh those colorful mosaics! I can't deal, I want my life to be just as colorful. All those tiles make me want to do some type of mosaic work like OhDearDrea's stairs.