Are you good at puzzles? How well do you know your classic rock history? We're about to test both skills at the same time. The scrambled-up picture you see below is the cover from a famous and groundbreaking album that celebrated its 45th birthday earlier this month.

So the question is, how fast can you get the blocks lined up to reveal the correct, finished image? It took us about twelve minutes -- and before you laugh, why not see if you can beat that time. If you need a few hints, you can learn more about this historic album right here.

Pink Floyd