Hall of the North West Coast Indians
The dioramas at the American Museum of Natural History are usually the highlights for visitors, and they are indeed beautiful and worthy of praise, but the Hall of the North West Coast Indians is a gem that most people miss. The Hall is the oldest display in the museum, and has hardly changed since its creation in 1900. The artifacts were collected by Franz Boas, often referred to as the Father of American Anthropology, and the exhibit features woven baskets, incredible ceremonial masks, every day implements for fishing and cooking, and great (in all sense of the word) carved totem poles. The lighting is terrible, and the Hall is said to be due for some renovation, which is perhaps why people use it as a corridor and don't stop to look.
It's quiet due to its neglect by visitors, and the smell so comforting and nostalgic that you can almost imagine Holden Caulfield passing through the great doors, as he did in the Catcher in the Rye.