This 17th-century pub once had a hole in its wall so the neighboring blacksmith could easily access beer.

An enormous, inside-out glass globe built in 1935.

255 feet of suds, scrubbers, and blow dryers.

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

A delightfully quirky blend of oddities spread throughout an old 1920s bank.

Did Inca children also slide down these smooth rocky slopes above Cusco?

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

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

Death rituals and sacrifice inside a Peruvian megalith.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

The little bear in the "funny kind of hat" has made his way from London back to Peru.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

A market for witches is hidden within a train station.

If astronomy had a ghost, it would look like this observatory.

This lab's maddening silence is good for business but bad for sanity.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Shakespeare has been brought to life in this open air theater for the better part of a century.

This sandstone mansion was the home of two of Oregon's most important pioneers.

A collection of odd-shaped and quirky sounding instruments handmade by a midcentury inventor-composer.

One man's eclectic collection of treasures found at sea.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.