The Underground City Of Naours In Northern France

Consisting of 300 rooms and 28 galleries, the Cité souterraine de Naours hosted roughly 3000 people at its height. Along with these human inhabitants, there were also spaces for keeping livestock, as well as three chapels, multiple town squares, and a bakery with working ovens. The chimneys from these ovens and from any other fires underground were carefully routed through the existing structures aboveground to hide the existence of the daily life taking place 22 meters (72 feet) below ground.