5: Glastonbury Tor
Not quite as exotic as the other mysterious places, Glastonbury Tor is nonetheless center of a large number of legends, most prominent of which being that of King Arthur’s Avalon. Which is a pretty big legend to begin with. Entrance to the Fae realm and all. Also supposedly the Tor houses the Holy Grail, and is part of a larger pre-Roman magical geomantic rune thing. And something conspiracy theorists repeatedly come back to when it comes to nutty theories on how the Illuminati use Pagan sorcery to do whatever the Illuminati do.