'101 California Street' by Philip Johnson

101 California Street is a 48-story office building completed in 1982 in the Financial District of San Francisco, California. The 183 m (600 ft) tower providing 1,200,000 sq ft (110,000 m2) of office space is bounded by California-, Davis-, Front-, and Pine Streets near Market Street.

The building is the site of what has become known as the 101 California Street shootings, a mass murder which occurred there in 1993. On July 1, Gian Luigi Ferri, a disgruntled client of the law firm Pettit & Martin, entered their offices on the 34th floor and killed eight people and wounded six before killing himself. The event was a catalyst in the passage of the Violent Crime Control and Law Enforcement Act of 1994, a drive initiated by California Senator Barbara Boxer to ban assault weapons. A terraced garden in the plaza in front of the building is now dedicated to the victims.