A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.

There are hidden patterns on the subway seats of some Stockholm metro cars.

This mysterious sign claims an American astronomer haunts the building—but is it true?

Walking through this narrow gorge will make you feel like you've fallen into a fairytale landscape.

This floating sculpture of ice is a poignant reminder of nature's power.

Thousands of miniature bronze sculptures have taken over this city square creating a unique art installation.

In downtown Oslo, a menacing and terrifying relief clings to a church wall.

This striking sculpture of a supermodel in a yoga pose challenges traditional public art.

At low tide, you can see the remains of a 17th-century ship just off a Stockholm island.

Outside a Viking museum sits a modern-day runestone made by a Swedish runemaster using traditional methods.

Sound travels strangely in this underground whispering gallery.

A concrete mushroom that divided Stockholm residents for nearly a century.

It houses the remains of a 17th-century version of the Titanic.

A miniature model of the iconic Stockholm department store.

A temporary art piece to celebrate LGBTQ Pride is now a permanent part of Stockholm's traffic landscape.

What looks like a birch tree smushed between two pieces of glass often confounds commuters.

A sobering account of the vibrant multicultural neighborhood that was destroyed under apartheid.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

Despite many attempts to finish this overpass, it has been abandoned since the 1970s.

Surgeon, scholar, activist, eccentric. This statue remembers a curious figure in Wales’ history.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

This gem of Moorish architecture is slowly disintegrating along the coast of this charming town.

An ancient burial ground believed to have been used for ritual sacrifice.