1 Sansome Street
San Francisco, CA 94104
+1 415 391 2000 (Tourist Information)
This majestic building in the Financial District houses a little secret. The outer columns of the building lead into a large greenhouse which is actually one of the city's POPO's, or Privately Owned Public Outdoor spaces, so its open for general use. It is a great spot to enjoy a nice break from the city with lunch or simply to people-watch through the open entryway.