Most-visited and most-photographed slot canyon in the American Southwest.

A terrific purveyor of natural history objects and curios.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

The ancient tomb acts as a calendar that keeps perfect time.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

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

Paris' linguistic guide to the international language of, yes, love.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A public urinal so pretty, it was declared a national monument.

This cheese shop also houses a museum devoted to Dutch dairy.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

Museum preserving torture methods from the past.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

The highest point in Washington state is a volcano covered in glaciers.

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

A wall of chewing gum moonlights as collective art.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

A colorful architectural gem in Seattle’s uniquely modern Central Library.

A giant Troll lurks under one of Seattle's oldest bridges.

A stick-sprouting statue watching a duo of disembodied dancing deities.