All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

A replica of the steam engine that hauled Queen Victoria's Royal Train is on display at Windsor.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

Even in death, he's still your huckleberry.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

The fifth-longest natural arch in the world, and the longest outside China.

Not quite the menace it once was, this monster still has some chops.

Japanese national treasure originally built in 593 CE.

Peace Park and the Atomic Bomb Dome.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

The 10,000 Torii shrine.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

Once the most densely populated place in the world, this island is now a ghost town.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This stunning concert hall has become a symbol of Iceland's national recovery.

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

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

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Pop culture has helped to keep this iconic British building from being destroyed.

Eighty million natural history specimens call this gargantuan museum home.

A gallery specifically dedicated to the botanical illustrations of a remarkable traveling lady.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.