La Petite Ceinture

Explore the officially opened sections, especially the green 15th arrondissement bit or the tunnels in the 12th, for a unique urban adventure.

In their own words: “La Petite Centur used to carry passengers around Paris over a hundred years ago. But here's where it gets good. Instead of tearing it down, Paris just left it. Picture this. You're walking on old train tracks, incredible graffiti art everywhere, wild flowers growing between the rails, and you're in this weird magical bubble below the city.”