Two Roman theatres sit atop the Fourvière Hill in Lyon. The larger one is the most ancient such structure in France and was built by order of Augustus from 17 B.C. to 15 B.C. It was later expanded during the reign of Hadrian. Nearly 110 meters wide, the theatre could seat 10,000 people. It is still used for concerts during the summer.
Based on a old IXe century tour, then reinforced by Charles Quint in 1554, the Miardou Fort was built in 1679 by Vauban. Today occupied by the french army we can't visit it. This fort was built to prevent a invasion by the Maures people.