A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

Eighty million natural history specimens call this gargantuan museum home.

A local dive where religious kitsch, Southern identity, and queer culture collide.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This medieval city gate is now a blend of the past and the modern world.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

The Lowcountry color with the power to stop evil from entering a home.

Lyon's "Wall of the Silk Weavers" is one of the largest murals in Europe.

The vaulted ceiling is home to a scurry of “squirrelgoyles.”

This stately bank building hides a spectacular star-studded ceiling.

This tiny train shuttles passengers to one of Northern Ireland's most spectacular sights.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

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

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

An old bank vault in Atlanta is now the eternal shrine to the King of Rock and Roll.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.