A number of gruesome unsolved murders have turned this simple home into a morbid tourist trap.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

This set of hot springs also comes with fantastic views.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

When in Idaho, sleep in a giant potato.

Natural rock water slides hidden in the remote forests of northern Idaho.

The longest navigable underground river in the United States is home to countless blind and albino animals.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A wild west land agreement was etched right onto this historic Idaho stone.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

This highest peak in Idaho can only be reached by traversing a formation known as "Chicken-Out Ridge."

These century-old beehive-shaped kilns were built to produce charcoal for nearby mines.

A Hawaiian stairway to heaven—that you can't climb.

This blowhole is supposedly caused by a trapped monster.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

Watch the newest land on the planet form before your eyes.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

A tunnel of hardened lava along Maui’s famous Road to Hana.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

A late-night restaurant empire was launched from this humble storefront.

Scattered around Atlanta are little doors with big charm.

One of only two pod-shaped homes designed by Frank Lloyd Wright.