Avoid gangster interaction while window-shopping.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

The most decorated dog of World War I is preserved in the Smithsonian.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

The "lovely red Vega" of the legendary record-settling pilot.

A Korean village where times stands still.

Climb to the top of the world's largest seated bronze Buddha.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A six-ton wedding present for the King of the Scots.

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

France's most famous cemetery, with some of its most curious tombs.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Notorious artist squat renovated into legal studios.

The celebrated eyesore created by starry-eyed sweethearts.

This modest marker near Notre Dame identifies the very center of Paris.

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

Live a night as a Byzantine King, with a minibar and private jacuzzi.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

In this historic region, homes and churches are carved into ancient volcanic rock formations.