What has 40 kilometers of underground corridors, orange walls, and used to grow mushrooms? If you guessed the ochre mines of Bruoux, you win!
The Luberon Valley in Provence is famous for its ochre. It was mined here for centuries and a walk through the brilliantly-colored quarries of Roussillon or Rustrel is like walking through a rainbow. At Bruoux, rather than carving out the side of a mountain, the miners dug straight in, creating tall corridors hundreds of meters long.
You can take a guided tour of the mines that is about an hour long and just fascinating.
Read all about it in The Good Life France!