This 12th century, partially destroyed, abbey has had several owners and was seized during the French Revolution.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

To the famous surrealist artist, liberty required two torches held high.

Science fiction's grandfather has a fittingly marvelous tomb.

Two small chapels housed inside an ancient tree.

An early 20th-century sanatorium, long abandoned and now being reclaimed by nature.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

An Austrian house of bones filled with hundreds of intricately painted skulls.

A former ironworks that was the first UNESCO industrial site.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

Single runway interrupted by a busy road that cuts across its middle.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

A small monument in Lithuania marks the geographic center of Europe—or at least one of the claimants.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

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

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

This abandoned secret city is a crumbling wonderland of Soviet ruins.

The reconstruction of this prominent building fulfilled a long-written command.

The oldest housing complex in Riga is a mini timeline of architectural trends.

3,000 market stands in five former Zeppelin hangars.