Human beings love symbolism. So when a place is home to a notable landmark, we tend to pin certain values to it. For instance, some equate the Statue of Liberty with the notion of freedom. The Eiffel Tower, meanwhile, is an emblem of Paris itself. But while you can instantly recognize these and other important structures around the world from the ground, you might just have a more tricky task from the air. You’ll still be impressed by these 20 landmarks with a bird’s-eye view, but you might need a second to recognize them.