Hike deep into the woods to explore this Gilded Age masterpiece.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

A dramatically eroding canyon thousands of miles from the desert.

Moonbows over Kentucky.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This ancient Chinese observatory still contains early astronomy technology.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The artist and his brother are buried in a landscape straight out of a van Gogh painting.

A hotel and restaurant serving as the mecca of kitsch.

The legendary building that needed ghostly approval before being built.

A beautiful memorial tells the story of a formerly enslaved woman whose kindness shaped a burgeoning city.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

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.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Inside this library, the history of Los Angeles is retold through a mural.

Though the original building has been demolished, these massive bronze doors were saved.

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

An iconic location along the Los Angeles River where countless movie scenes are filmed.

Outposts of this restaurant chain were shaped like jaunty chapeaus.

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.