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

A fascinating aviation museum where you can chat with the veterans who once flew the aircraft on display.

Once a black market electronics marketplace, now an otaku shopper's paradise.

The world's largest fire hydrant is supposedly tornado-proof.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

Northern Ireland's Brobdingnagian stepping stones.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Impressive mining ruins overlook a spectacular view of Ireland's Copper Coast.

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

One of Ireland's most infamous prisons for rebels including men, women and children.

A museum marks and documents the site of the Titanic's launch.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

An iconic Soviet statue of working-class people.

This massive monument honors the first human in space.

One of the world's tallest statues is also one of its most hated.

Museum design and public transportation meet in this unique Russian train car.

Dozens of padlock-trees along the Moscow River.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Moscow's imposing monument to the Space Age.

Its front wall is striped with a menagerie of fantastic beasts and magnificent monsters.