This astronomically-aligned stone circle was the first of its kind to be built in Great Britain after a 3,000-year hiatus.

Three large boulders covered in mysterious carvings and graffiti.

A humble ancient well where Scottish knight, Sir William Wallace, took his final drink.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

A serene public space nestled within the remains of Glasgow’s Victorian maternity hospital

This waterfall is one of the most spectacular natural features in the Scottish Lowlands.

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

A scattered trail of street art adds a pop of color to the city's stark structures.

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

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

A former hen house turned curiosity cabinet displays one man's lifelong fascination with cannibalism.

Micro-nation based around a nine-story high illegally built tower.

A man has revenged his true love's betrayal through tears and stone genitalia.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

A surreal museum of extraordinary industrial objects.

Started as a kitchen garden, now the second largest botanical garden in the world.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

An eerie, derelict amusement park in Berlin.

The site of Stockholm's last public execution.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

An intricately carved Viking church overlooks a glistening fjord.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

This mysterious runestone embedded in a church wall is linked to the medieval cult of Saint Erik.