The Leaning Tower of Pisa, known worldwide for its unintended tilt to one side, is the freestanding bell tower of the cathedral in the Italian city of Pisa. Work on the ground floor of the white marble campanile began on August 8, 1173. These amazingly detailed DIY models start as 4" square steel sheets and finish as amazing 3D models. Use easy to follow instructions to pop out the pieces, bend the tabs, and connect them at the attachment points. Build your collection today!