Number One: The Salesforce Tower in SoMa, San Francisco
Rising 1,070 feet tall, the Salesforce Tower is the tallest building in the Bay Area, the 17th tallest in the United States, and the 91st tallest in the world. The distinctive glass-wrapped tower has been designed by one of the preeminent architects in the world, Pelli Clarke Pelli. Unsurprisingly, it remains a divisive contribution to the San Francisco skyline.