There are lots of fun facts about the Empire State Building. Did you know that?

• The Empire State Building was the world's tallest building for more than 40 years, from 1931 to 1972.
• The Empire State Building is 1,453 feet 8 9/16 inches from the base to the top of the antennae.
• The Empire State Building cost $40,948,900 to build.
• The Empire State Building was built in 1 year and 45 days. It was raised at a rate of 4.5 floors a week.
• The Empire State Building weighs 365,000 tons. The building is supported by 210 steel and concrete piles.
• The Empire State Building is made of 10 million bricks, 57,000 tons of steel, 2,000,000 cubic feet of limestone and 730 tons of aluminum.
• The Empire State Building has 17 million feet of telephone wire, 473 miles of electrical wiring, and 70 miles of pipe.
• The Empire State Building has 73 elevators and 6,514 windows. There are 1,860 steps from the lobby to the 102nd floor.
• The Empire State is topped by a lightning rod. Lightning strikes the building about 100 times a year.