Reach for the Skies The Great Pyramid of Giza was completed in 2570 BCE. With its vast dimensions for that time, it was classified as the tallest structure on Earth. In fact, at 480 ft. high, it remained the tallest structure for thousands of years. The Eiffel Tower held the record in the late 19th century. After that, the tallest structure was a skyscraper called the Chrysler Building, built in New York in 1930 with a height of 1,046 ft. A year later, just a few blocks away, the Empire State Building rose to a height of 1,250 ft., making in the tallest building in the world from 1931 until 1972. In fact, it is one of the easiest buildings worlwide to identify and has appeared in over 100 movies, most famously the 1933 and 2005 versions of King Kong. Up to this day, once a year, the Empire Sate Building holds the world's most famous stair-climbing competition. Competitors race up the building's 1,576 steps as quickly as they can - sometimes in less than ten minutes! Nowadays, t...