10 A fairy cave, Le Trou des Fées, Virton, Belgium

Fairies are weird creatures: they’re never there when you need them. Well, after all, they only exist when you believe in them.

The word fairy seems to come from the old French word faerie, derived ultimately from the Latin word fata, a guardian or tutelary spirit.
This little cave is a perfect hiding place for them.
It has a lot of carvings on it, many made by tourists, but some are really old.