This month’s National Geographic cover story is all about the catacombs and quarries beneath the streets of Paris. As a supplement to the print articles and pictures in the magazine, National Geographic has published an interactive map of the Paris underground.

In collaboration with NPR, National Geographic created a video tour of the Paris underground and the people who live to explore the catacombs and quarries beneath the city.

H/T to Open Culture.

Applications for Education
The catacombs and abandoned quarries below Paris offer the opportunity to develop lessons about culture, history, and engineering.