Rocamadour, France is built on a rock in the middle of the Causse de Gramat. This is a vast slate plateau and part of the Causse du Quercy. The city is the most visited pilgrimage site after Lourdes in France.
Venice -- A city in northeastern Italy sited on a group of 118 small islands separated by canals and linked by bridges. Venice is renowned for the beauty of its setting, its architecture and its artworks (Italy)