Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

An old Danish political institution where members of government can grab a drink off the record.

The standard measure of Lagom, a measure of what is enough.

The indecision over what to place in this square was immortalized with a plaque.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

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

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

An eerie, derelict amusement park in Berlin.

Old Danish castle immortalized in Shakespeare's Hamlet.

A natural wonder in south Denmark.

This secret collection of the strange and occult was rediscovered in a forgotten room of an old house.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

Six beautiful wooden giants are hidden around Copenhagen.

A walkable map of the world, made from soil and stone by one man.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

Hans Christian Andersen for the postmodern world.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

Extraordinary sculpture garden created by an eccentric English poet.

These azure waters were thought to lead to the Mayan Underworld.

An Aztec snake god has taken the material form of an apartment complex.