Don't just wander the earth's surface — take a peek at what's below it too. See otherworldly natural formations and shapes in the deep, dark recesses of La Grotte aux Fees.
This natural underground attraction in Champagne comes recommended by many travelers, so make sure it features on your to-do list. Don't think that's all there is to do here, though. There are loads more places waiting for you to enjoy after La Grotte aux Fees. Thermal Center, Yverdon-les-Bains Castle, and Le Chasseron are close by.