6Naours, France
Northern France is home to an unexpected underground world beneath the village of Naours. The Naours Underground City is a vast network of tunnels and chambers carved into chalk.
Unlike the monumental stone architecture associated with ancient cities, Naours is a maze of subterranean spaces that were used by local communities for shelter and storage over centuries.
The network became particularly significant during periods of conflict, when people could seek protection underground. Today, visitors can enter the tunnels and see the unusual spaces that once provided refuge beneath the French countryside.
