The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

A magical sanctuary of mythological statuary.

A place to eat for on-the-run agents and espionage enthusiasts.

This striking art museum holds an amazing series of curiosity cabinets.

Statue dedicated to the star of an old television show.

The world's last remaining store of its kind.

The longest continuous lava tube in Oregon.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

These spectacular ruins were built by Spanish padres in the 17th century.

Of the many Jesuit missions in South America, this complex is one of the best preserved.

A small but industrious mining operation that allows visitors to touch precious gems while they are still in the rock.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

Perhaps the most unique of any Frank Gehry design for one simple reason: Gehry himself actually lives here.

Legendary prop shop filled with one man's collection of scientific curiosities.

A second generation sun-powered marvel lights up the night.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

This former stomping grounds of the most eminent astronomers of the early 20th century.