Hundreds of mossy stones engraved with bits of philosophy, literature and random musings.

Iron Age grave stones and Viking burials, a short drive from Gothenburg.

Crooked windswept pines give this old forest an enchanted and magical look.

The second oldest anatomical theater is housed in a museum of curiosities.

This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

This chimerical bridge/tunnel appears to dead end right into the sea.

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

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

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

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

The world's largest model of our planetary system.

Bring your hiking shoes, wool socks, and thermal underwear for a stay in these cozy forest huts.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

This site is both a remarkable reminder of the town's mining history and a fantastic government blooper.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

Infamous and now demolished panopticon prison built by its former inhabitants.

This memorial, built by fascist dictator General Franco in 1960, has been repurposed by the people of Catalonia.

Not far from Madrid, a set of perfectly preserved trenches date back to the Spanish Civil War.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

A tiny church remembers the Polish cavalrymen who charged their way into a Napoleonic victory.

Whimsical sculptures and caves chiseled by nature over the millennia.

Medieval ruins nestled within a breathtaking swath of Spanish nature.