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

A unique seaside cave where Aleister Crowley faked his own death.

A rocky outcrop where monks hid their most holy relic while escaping Danish invaders.

A remarkable feat of Victorian engineering across the Firth of Forth.

An ancient Roman altar named after Robert the Bruce.

The long-lost final resting place of an accused witch.

Did the legendary Scottish knight William Wallace actually take refuge here after a major battle?

This imprint of an old computer keyboard has a unique backstory.

This neon sign is an homage to an Alfred Hitchcock film.

A brother statue swap has adorned this building's facade for centuries.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

An angelic, yet demonic-looking figurine presides over one of Glasgow's most ancient streets.

A unique art installation located on what was once considered the widest railway bridge in the world.

This colorful mosaic remembers one of Britain's most deadly peacetime fires.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This museum contains a vast array of puppets and marionettes from all over the world, featuring incredible works by Portuguese creators.

The world's oldest bookshop still in operation.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Bronze plates placed around this Scottish fishing village form a true-scale model of the solar system.

This tiny little cave was said to have been a refuge for a saint with a glowing arm.