One World Trade Center by the Numbers

Exterior Glass

Amount of insulated low-e glass used in curtain wall: 787,200 square feet (equivalent to about 14 football fields). Number of glass fins adorning building base: 4,400.

Elevators

Number of high-speed elevators: 54. Maximum speed of elevators: 2,000 feet per minute (fastest in North America).

The Structure

Total height: 1,776 feet. Total volume of concrete used: 200,000 cubic yards. Total weight of steel: 46,000 tons.

Lobby

Longest reception desk: 50 feet. Amount of marble used for lobby desks: 900 square feet. Amount of marble used for lobby walls: 45,600 square feet.

Spire

Height of spire: 441 feet. Number of color LEDs in spire: 12,500.

Offices

Rentable space: three million square feet.

Cleanup

Number of building maintenance units for exterior cleaning and upkeep: three.