A bizarre example of collective behavior resulted in thousands of shoe prints in Vegas parking lots.

A shockingly detailed small scale recreation of the temples of Abu Simbel.

Widely advertised as Amsterdam’s narrowest street, this passage was once a highlight of the Red Light District before its windows closed.

The former headquarters of history's oldest megacorporation.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Amsterdam's former hotspot for public executions and dissections.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

Europe's first floating restaurant is home to a hilarious legend.

Sail in for a ’dam good slice.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

An amusement park on the grounds of an unused nuclear power plant, with a swing ride inside the cooling tower.

This small condiment museum makes all manner of mustards with a 200-year-old mill.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

Life-sized bronze statues of fictional puppet characters.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

A monumental golden thumb rises as an iconic homage to Nouveau Réalisme, bold in scale and unapologetic in spirit.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Centuries of warfare, tragedy, executions, and poetry come together in this 13th-century fortress.

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

Tiny castle in the middle of the Rhine made you pay to pass.