Belfry in Bruges

You're standing on the Markt, the main square of Bruges, right at the foot of the belfry. Take a look up. This tower is eighty-three metres tall, and it isn't quite straight. It leans about eighty-seven centimetres to the east. It started tilting as early as the thirteenth century, probably because an old watercourse had been filled in right here. In 1554 the corners were propped up with heavy buttresses to stop it sinking further.