Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.

The world's first time capsule lies behind a welded steel door in Atlanta.

The largest island on the great salt lake is home to curious creatures and strange stories.

A former taxidermist has turned his old shop into a folk art mecca.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

A good place to research the Freemasons, esoterica, occultism, and hermeticism.

An inconspicuous footbridge beloved by San Diego locals.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Settled in 1696, abandoned after the Revolutionary War.

Collection of vintage trailers double as hotel rooms.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

A Mysterious Masonic tomb in San Luis Obispo.

Nancy Thompson's Home from "A Nightmare on Elm Street."

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

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

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

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

This historic hotel invented the chocolate brownie.

This large midwestern cavern features impressive rock formations and an underground waterfall.

The summer home of the largest colony of bats in the world.

Scattered around Atlanta are little doors with big charm.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

This innocent-looking townhome is actually a subway exit.