England's most notorious suicide spot.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

Four alabaster giants contemplate the tides on the shore of Denmark.

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

Nordic giants resurrected from the sea and restored to their former greatness.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

The history and future of cannabis.

A monument celebrating the idea of reaching inaccessible places.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Museum dedicated to the terror regimes of Hungary.

Museum deep in the catacombs of St. Michael the Archangel Church is explored by touch, sound, and smell.

A memorial to the murdered Jews of Kaunas.

Once the home of a hermetic monk, this cave now houses a small church.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

A little sculpture with a large wardrobe.

This massive subterranean fissure is known as the "underground Grand Canyon."

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.