Introduction to the leaning tower: The leaning tower of the old church is the bell tower of a Gothic church and one of the ten famous leaning towers in the world. This tower was built in 1246 and is made of bricks. The tower is 245 feet (74.676 meters) high and the spire is tilted 6.5 feet (1.98 meters). There is an ancient bell weighing 9 tons in the tower. Because the bell tower was built near the canal bed, it tilted.