The world's most remote airport.

This large round boulder is said to emit spiritual power, but it may just be magnets.

This Shetland Islands bus shelter may be small, but it squeezes in a couch, a desk, some art, and even an old telly.

World's largest working waterwheel has been around for over 150 years.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

Floating man-made island and upscale restaurant.

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

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

100-year-old shipwreck you can walk up to at low tide.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Limestone caves with spectacular showcase chambers.

A wall of chewing gum moonlights as collective art.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

The world's largest military aircraft cemetery.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

See massive fossils that are over 200 million years old in northeastern Arizona.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

It specializes in outsider art and artifacts of secret societies.

A semi-scholarly approach to sex.