This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

Eighty million natural history specimens call this gargantuan museum home.

A hands-off space for graffiti artists to hone and display their skills.

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.

Berlin's old airport.

Floating swimming pool within a moored vessel.

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

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

A tower devoted to — and modeled after — the Divine Comedy.

The final resting place of the liberator of Argentina is guarded around the clock by two soldiers.

A gateway to a mysterious network of underground tunnels.

A bright little alley in La Boca is a part of tango history.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

Bible stories are brought to life with gloriously cartoonish kitsch in this South American theme park.