This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

A monument celebrating the idea of reaching inaccessible places.

A community of collapsing homes more than a mile out from the Florida coast.

When this test site was abandoned, they didn't even bother to take the rocket with them.

An abandoned water sports stadium that has become a haven for graffiti and decay.

An underwater city for the dead.

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

A white Buddhist temple with a golden restroom.

This naturally-sourced hot spring is now home to a clothing-optional resort.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The remains of this rugged homestead ranch offer a brief glimpse into a bygone era.

This ancient trail has claimed the lives of over 2,000 people.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

An artificial crater field that trained astronauts for lunar exploration.

This golf ball–shaped former desert real estate office now houses a UFO museum.

Collection of vintage trailers double as hotel rooms.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Ancient pueblos built into the base of a natural canyon wall.

This historic national park is covered in the stunning ruins of red rock pueblos.