Did you know there are only four cities in the world with more than five super-tall skyscrapers?

Or that the Empire State Building is designed to be a lightning rod?

In this infographic, courtesy of Calgary Window and Door Guys, we look at the world's most iconic skyscrapers, the top skyscraper cities, as well as the evolution of the skyscraper.

See also: World's tallest pair of skyscrapers planned for China

Sydney tower named fifth best skyscraper in the world