Civita di Bagnoregio is a town in the Province of Viterbo in central Italy, a suburb of the comune of Bagnoregio. The town is noted for its striking position on top of a plateau of friable volcanic tuff overlooking the Tiber river valley. It is in constant danger of destruction as the edges of the plateau collapse due to erosion, leaving the buildings to crumble as their underlying support falls away. As of 2004, there were plans to reinforce the plateau with steel rods to prevent further geological damage. The city is also much admired for its architecture spanning several hundred years. Civita di Bagnoregio owes much of its unaltered condition to its relative isolation; the town was able to withstand most intrusions of modernity as well as the destruction brought by two world wars. The population today is 11 people, but due to a healthy amount of bnb’s the village gets busy in the summer months. Admission not included.