These jeweled relics have a scandalous and contested past.

A rare example of a German cemetery with traditional grave markers dating back several generations.

In the heart of Luxembourg's "little Switzerland" weaves a breathtaking natural sandstone canyon with a mythological past.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

From Nazi chemicals to the CIA, this architectural marvel has played a fascinating role in German history.

This marvelous array is one of the largest collections of mechanical instruments in Europe.

A former Nazi lookout tower with a magnificent view of the Rhineland.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

A series of haunting wooden totems are hidden in the woods surrounding a German environmental center.

This inconspicuous pharmacy went down in history as the first gas station in the world after fueling the first road trip ever taken.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

Started as a kitchen garden, now the second largest botanical garden in the world.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A small island in Lake Garda that was used as a burial site, pirate hideout, and a monastery.

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

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

These Victorian era devil sculptures were designed to spite a local vicar.

It's a mystery why these remains were found with no traces of their bodies in sight.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.