Together with the Golden Gate, this building is an icon of San Francisco. Ever since it was completed in 1972, the Pyramid is one of the most recognizable places in the city. It used to serve as a Transamerica Corporation headquarters, hence the name. The company headquarters is no longer situated there but it still uses the silhouette of the tower as a logo.
Due to security reasons, the building is not open to the public. You can only visit the Visitor Center located on the ground level to watch the live streams of the Top of the Pyramid views or read through the exhibitions concerning the history of the building. There is also a gift shop with Pyramid-themed souvenirs.