The Transamerica Pyramid -San Francisco Skyscraper

The Transamerica Pyramid -The building's façade is covered in crushed quartz, giving the building its pure white color.
The four-story base of the building contains a total of 16,000 cu yd (12,000 m3) of concrete and over 300 mi (480 km) of steel rebar .
It has 3,678 windows.
The building's foundation is 9 feet (2.7 m) thick and was the result of a 24-hour continuous concrete pour.
Only two of the building's 18 elevators reach the top floor.
The original proposal called for a 1,150 ft (350 m) building, which would have been for one year the second-tallest completed building in the world. The proposal was rejected by the city planning commission on the grounds that it would have interfered with views of San Francisco Bay from Nob Hill.
The building occupies the site that was the temporary home of A.P. Giannini's Bank of Italy after the 1906 San Francisco earthquake destroyed its office. Giannini founded Transamerica in 1928 as a holding company for his financial empire. Bank of Italy later became Bank of America.
There is a plaque commemorating two famous dogs, Bummer and Lazarus, at the base of the building.
The hull of the whaling vessel Niantic, an artifact of the 1849 California Gold Rush, lay almost exactly beneath the Transamerica Pyramid, and the location is marked by a historical plaque outside the building (California Historical Landmark #88).
The aluminum cap is indirectly illuminated from within to balance the appearance at night.
The two vertical external extensions allow preservation of useful interior space at the upper levels. One extension is the top of elevator shafts while the other is a smoke evacuation tower for fire-fighting.
A glass pyramid cap sits at the top and encloses both aircraft warning light and a seasonal white beacon.
At certain times of the year the glass cap will briefly cast a reflected sunlight gleam onto traffic crossing the San Francisco Oakland Bay Bridge


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[RobertoLopezstudyis]

This is one of San Francisco's famous landmarks and I love it very much!