Located in the the Financial District of San Francisco, the Conservatory is San Francisco's newest public space (It opened last month). It is actually two buildings- The first is a 550-ft skyscraper built in the 1980's and the other one is a building that was built in 1910 and designed by the famous architect Albert Pissis to house the Anglo and London Bank.
They have done major renovations and have re-named it the Holbrook House and it has a world-class restaurant in now. I didn't eat there but just took pictures of the place:
And I just loved views from the windows:
The Conservatory at One Sansome is a great addition to San Francisco