Location: Einstein's old flat, Bern, Switzerland
Reason to visit: The dude corrected Newton, come on!
Albert Einstein is of course most famous for his theories of relativity; the theories that instil an understanding of time and space into the minds of intellectuals and laymen alike. Einstein challenged Isaac Newton's physical laws that had stood as scientific fact for centuries.
It was in this street, on the second floor of Kramgasse No. 49, Bern, that Einstein penned his first theories that went on to overhaul how we understand the universe.
Whether or not you consider yourself a geek, an intellectual, a closet astrophysicist or repressed would-be professor; if you've ever appreciated how the world keeps turning or how travelling close to the speed of light makes time slow down, you should drop by Einstein's bijou bachelor pad.