The Institute for Advanced Study: The First 100 Years
ias.edu
ias.edu
An academic who got an appointment there remarked that he was given a room with a desk and a nice chair and a window, and was expected to spend a lot of time there thinking, alone. This was very mid-20th-century, the concept that hard problems could be solved by hard thinking in isolation. Fermi once remarked "Sometimes you have to keep thinking past the point where it starts to hurt."
They do encourage socialization. They're said to have a very good wine cellar.
I can report that their cafeteria is excellent.
"Academic houses of refuge . . . a freely endowed central establishment where teachers and students of all nationalities, including Americans with the rest, may pursue their chosen work . . ."