Number 42: 100 First Plaza, SoMa, San Francisco
Standing at the Salesforce Tower’s foot, 100 First Plaza is not among the city’s most recognizable structures. By comparison, it almost appears short. Yet, with a pinnacle 447 feet above street level, it is the 42nd tallest building in the Bay Area built or planned. The tower, located at 100 First Street in SoMa, opened in 1988 with a postmodernist design from the office of Skidmore, Owings & Merrill.