Limestone caves with spectacular showcase chambers.

These mid-century motels once housed the workers who built the Glen Canyon Dam.

This town is home to the world’s largest arch constructed entirely of elk antlers.

One man's quest to save his town with a trail of record-breaking sculptures.

A 6-mile-long lake created by an apocalyptic seismic event and the deadly chain reaction that ensued.

A collection of 16,000 antlers crammed beautifully into a small shed.

These giant metal horses graze on a hilltop near the Montana highway.

The place where Samuel "Slater the Traitor" brought the Industrial Revolution to America.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

Rhode Island's tallest building bears a resemblance to the "Daily Planet" building and has been empty for more than five years.

From horses to stainless-steel trucks, this iconic Providence burger wagon is one of the oldest mobile diners in the country.

Rumors of the occult haunt this upscale 1920s hotel.

Only a shrine remains at the site of the catastrophic nightclub inferno that killed 100 Great White fans.

Once the largest attraction in Rhode Island, this former amusement park is now a gorgeous coastal state park.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

One of the oldest carousels in the United States is still running in the coastal village of Watch Hill.

The only surviving fragment of the lost Narragansett Pier Casino.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

The only road through the heart of Glacier National Park.

The sun acts as a key that only fits this giant keyhole twice a year.