This Roman quarry once held secret masses and smuggler's contraband and is now home to rare species of bats.

Giant naked man on a hillside.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

The world's largest collection of witchcraft regalia.

These mysterious mazes carved on the rock may be up to 4,000 years old.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

Inspired by a dream, a hermit carved out a home in this sandstone bank to live a life of contemplation and prayer.

The ruined doorway is a portal to the building's turbulent and torturous past.

This mysterious Bronze Age standing stone has become a place where couples profess their love.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

This city square dates back to the Scottish Enlightenment and was home to some of Scotland's brightest minds.

The ruins of the second of three churches dedicated to the saint in a touristic Scottish town.

Even after the church tried to wipe the practice out, this pagan festival lives on each year in a small Scottish village.

Now in ruins, this abbey was the home of Tironensian monks for more than 400 years.

This stone was once used by druids to determine a person's innocence or guilt.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

This coffee shop lies hidden beneath a historic church.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

One part local history, 99 parts gruesome haunted house.

This uniquely shaped rock formation is one of Scotland's most iconic mountains and gives spectacular views in all directions.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

A 13th-century stronghold that has fallen into ruin.

This tiny island is home to the world's largest colony of Northern gannets.