The largest stone circle in Ireland.

An ancient chamber filled with wonderful rock art and a Neolithic carving of a human face.

One man’s religious convictions led him to build this stone castle meant to withstand an apocalypse.

This trail follows unique stone railroad tracks and a historic waterway to the south coast of Devon.

One of several Lilliputian portals that are ready to transport passengers to other dimensions, if they can find them.

In a sleepy village in Oxfordshire, the visionary English writer's gravesite attracts a yearly pilgrimage.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

This religious museum resides in a church crypt next to the founder's house.

This peaceful park with centuries of history hides in an overlooked section of South London.

This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

Harry Potter’s Hogsmeade Station is also a charming blast from the past situated in North Yorkshire.

These Victorian era devil sculptures were designed to spite a local vicar.

A historic holy well hidden near a charming English park.

The "father of immunology" used this humble hut to offer the local people some of the world's first free vaccinations.

The undercroft is a spectacular example of medieval Cistercian architecture.

This Underground station has been a popular filming location for decades, even before it closed.

A medieval cave used to shelter local hermits now holds nearly 200 old Quaker gravestones.

This educational institution and reference library specialize in the psychic arts and mediumship.

A high-end clothing boutique with a curious basement art installation.

A 14th century castle built on the seat of a mighty giant.

A witch wreaks ruinous revenge on this ancient church with her "enchanted leg."

A hidden gem in the middle of the city's infamous Jewelry Quarter.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

What do we know about the real woman behind one of the Beatles' most famous songs?