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.
Train on a bridge in Engadin Valley - Swiss Alps, Switzerland. Loved visiting the Engadin Valley, and I think I was actually on this train since we bussed across Austria, and took the train across Switzerland.