The site of one of history's most indelible and horrific tragedies.

A unique sculpture park that specializes in the huge and bizarre.

A unique tribute to the millions of animals who served and died for the British military.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

A little slice of Japan and its aesthetics in London's Holland Park.

Catacombs turned marketplace.

Eighty million natural history specimens call this gargantuan museum home.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

While you wait to cross the street at a traffic light in Mainz, you might notice that the light is staring back at you.

A whimsical art tower at a Bavarian brewery includes a grotto for its mythical beer-brewing dwarves.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

A fearsome dragon clings to a corner of Munich's city hall.

One of downtown Berlin's last reminders of its Communist past.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A striking 12th-century-style castle built on the edge of a cliff.

A devastating landslide accidentally created this tourist hotspot.

This military mausoleum captures the solemn grandeur that most memorials only aspire to.

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

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.