#16: Paris Catacombs

Beneath the bustling streets of Paris lies a chilling secret: the catacombs, an extensive network of tunnels filled with skeletal remains. Although visitors can explore a small, guided section, the majority of these catacombs remain closed to the public.

The reasons are twofold: the risk of tunnel collapses and the real danger of getting lost in the maze-like passages. This restricted access helps preserve the historic site and ensures visitor safety. Despite their eerie allure, the Paris catacombs remind us of the city’s complex past and the importance of respecting and protecting such fragile underground environments.