A sanctuary for sickly, stray, or wounded donkeys.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

An elevator into the Baltic Sea.

This Luxembourg cave is covered in cryptic looking marks left by mining activity.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Walk or bike along a narrow strip of Belgium sandwiched by German territory.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

Budapest's Communist-era statues, banished to the suburbs.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

A statue honors the children who fought Nazis in Poland.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

Relive a Polish uprising via an enormous, century-old cyclorama.

A striking public sculpture representing the period of martial law in Communist Poland.

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.