Coffee
From caswiki
The Department of Physics and Astronomy is located in the Bloomberg Center on the west side of Homewood Campus, across San Martin Drive from Space Telescope Science Institute (STScI), where you can get coffee at Azafran (in the STScI building).
On campus, there are several good cafes: Mudd Hall, Gilman Hall, Brody Learning Commons, Levering Hall. Or you can take a long walk and go to Barns & Noble on 33rd street or Starbucks on St. Paul, both on the other side of the campus. A map of these cafes is shown below.
Do you have other recommendations?