An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

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

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

This sublime architectural marvel is a rare example of an expressionist church.

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

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

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

Four giant movable street lights decorate this modern Rotterdam square.

A modern reimagining of a medieval city gate.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

This museum houses an imposing skeleton army comprised of creatures great and small.

France's most famous cemetery, with some of its most curious tombs.

Ghosts of France's colonial past.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The curious underground history of keeping Paris clean.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.