What almost started out as a spite house became an eccentric's found object masterpiece.

A narrow strip of land is home to the tallest migrating dunes in Europe.

A curious art park at the geographic center of Europe is home to 3,000 television sets and other wonders.

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

Tiny memorials honor individual victims of the Holocaust.

Cold war icon and onetime "hole" in the iron curtain.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Two large posteriors in one giant statue.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

Giant topiary dog once played a role in a terrorist bomb plot.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

A lush indoor jungle fills this bustling Madrid transportation hub.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

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

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

A lover's walk between hilltop towns, decorated with graffiti love notes.