In the eighth century, a Breton monk named Emilion fled to southern France to escape persecution by the Benedictine order and adopted an eremitic existence, living in a cave.
Constructed over hundreds of years by the rulers of ancient Egypt, Luxor Temple was the largest and most significant religious center in the ancient Egyptian kingdom.
Cairo's historic district of Al-Darb al-Ahmar lies amidst the dense urban environment of Africa's largest city and is a neighborhood rich with medieval Islamic structures.
Terezin Fortress, a vast military complex with a perimeter of over 12 miles (20 kilometers), guards the confluence of the Elbe and Eger rivers in the northwest Czech Republic.