Seton Hotel:
The Seton Hotel is an actual hotel in New York City, not the fictional hotel in The Catcher in the Rye.
Relation to the Book:
In the book, Holden goes into a Hotel named the Seton Hotel. He goes into this hotel to go to the Wicker Bar which is not in the real life hotel. The Seton Hotel has been made famous for this in real life because of the use of its name in the book.