REUTERS/Mohammed SalamThe tallest building in the world stands at 2,717 feet, sometimes soaring above the clouds.
It's amazing to think human beings crafted these seemingly gravity-defying, modern marvels of engineering.
Still, what's most impressive above some of these skyscrapers is the view from the top.
Using Worldcam, a search engine that lets you discover the latest Instagram photos taken around the world, we found pictures snapped from the observation decks of the 15 tallest buildings.