The fountain marks the area where hundreds of accused witches were burned at the stake.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

An unexpectedly extraterrestrial room in a former Victorian resort club.

Beautiful carved tunnels.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A mythically themed self-built sculpture park.