The gondolas let you glimpse a bird's-eye view of one of the world's highest capital cities.

A swing to dangle you off the very edge.

Ecuador's largest Incan ruins show evidence of sophisticated irrigation and diplomacy among the ancient builders.

A turquoise lake within a volcanic crater.

One of the largest underground systems runs under Canada's largest urban center.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

An extensive collection of ancient Egyptian artifacts and mummies.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

The oldest U.S. Government building in California, and it's State Historic Landmark #1.

This municipal playground was co-created by the father of one of the most playful characters ever.

Largest illuminated advertisement sign in the world.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

Hike amid the palm trees that thrive among Southern California's Indio Hills.

Version of the French Riviera destroyed by the sea.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

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

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

Abandoned bull fighting ring, slowly falling apart in Uruguay.

This stone complex marks the urban center of a lost civilization.

This plaza at the end of the world teems with monumental tributes to a problematic history, and laser discs.