The history and future of cannabis.

Museum preserving torture methods from the past.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

This little-known national museum houses over 40,000 works of art from across the world.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Elaborate tile work in this railway station tells the story of Portugal.

A hidden three-foot-wide house separates these two regal churches.

The modern birthplace of Irish freedom.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

A whimsical bridge adorned with decorative dragons.

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

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

Bronzes and busts that once stood in the city's main squares are now relegated to a small hidden courtyard.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Macabre astrological automaton clock dating to the late 1400s.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

This micro-nation may be some sort of prank, but its constitution sure seems official.

A black cat protests the City Guild in Riga's Old Town.