Hagia Sophia is a former Greek Orthodox patriarchal basilica, which was later an imperial mosque, and is currently a museum, in Istanbul, Turkey. Now, thanks to CubicFun, you can build your own model and show it off in your office or home. Their 3D puzzles boast a unique slotting system that will challenge you in the best way while simultaneously providing hours of fun. Anticipate a world of satisfaction once your creation comes to life! Construction time: 240 to 300 minutes.