One of the world's oldest trees comes with a Welsh legend intertwining it with a spirit prophesying death.

Long-secret natural history museum, featuring the skull of a "Terror Bird."

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

This strange moor has a song written about it, Bronze Age carvings, and an alien sighting.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

A circle stone within a stone circle.

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

Man-made cave with enigmatic carvings, some say made by the Knights Templar themselves.

With lush plants and flowers, huge trees, ponds, and hidden monuments, this place feels a bit like discovering Narnia.

A 200-year-old collection of oddities and medical paraphernalia.

This Roman amphitheater is said to be King Arthur's legendary Round Table.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

These morbid carvings remind churchgoers of the inevitability of death.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

A memorial to a dog that inspired rioting in the streets of London.

Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

Macbeth's infamous "Great Birnam Wood."

This Scottish burial tomb once held hundreds of ancient eagle bones.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

Enter the world under the hill at this ancient UK burial chamber.

A Scottish manor with a history of mysterious fires, magic, and eccentric tales

This tiny little pool is said to be home to a malicious mermaid named Jenny Greenteeth.

Human-made caves excavated to hide a secret society of wealthy pagans.

This tiny island featuring 9th-century Viking ruins is only accessible at low tide.