It’s a puzzle for anyone who’s ever stepped into a cathedral and marveled at the intricate beauty. It’s also a puzzle for anyone who thinks being frustrated for hours on end is tons of fun. That’s because the Cathedral Door Puzzle’s laser-cut wood pieces fit together only one way – and after you pull them from their frame, it’s going to take some effort to get it back together again. We suspect the true puzzle-lovers of the world will be up to the challenge anyway.