The Twelve Corner Stone Monument in Cusco is an important landmark that was once part of a stone wall of one of the Inca palaces. After the destruction of the palace, these majestic stones were moved and incorporated into the wall of the Cusco Archbishop's Palace, and this wall became one of the most famous and most visited monuments in the city. At first glance, you may think that this landmark is not worth a visit, as it is only a wall, but the truth is completely opposite. When you see the size of the stones and the extreme accuracy in which they are arranged on top of each other and make them compatible, this landmark will truly impress you.