Ruins of a German Castle on top of a towering stone pillar.

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

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An eerie, derelict amusement park in Berlin.

A beer pipeline runs beneath Bruges.

Christ's blood preserved in a Belgian town.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Hans Christian Andersen for the postmodern world.

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

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.

Drink among marionettes at this pub inside a historic puppet theater.

Brussels' favorite peeing boy has a sister.

Medical history with an amazing, if frighting, collection of wax diseases on display.

Theme park featuring miniature replicas of European monuments.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Cozy basement bar sports an inventory of over 2,000 beers.

The Devil’s own choice when he needs a drink in Brussels.

Lavish royal estate punctuated with heated greenhouses.

Amsterdam's Red Light District leaves little to the imagination.

Amsterdam's former hotspot for public executions and dissections.