Located in a Civil War era building, this café is engrained with the spirit of Edgar Allen Poe.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

One of the last socialist halls still standing in the United States.

This beautiful ancient site is dotted with perforated sandstone pillars considered sacred by some Native American groups.

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

This museum glorifies the humble potato.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

An off-the-beaten path cave with an underground lake.

A geological mystery on Camelback Mountain.

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

A natural history wunderkammer in the middle of the desert.

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

What is the Thing?

America's only nuclear missile silo open to the public.

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

A reproduction of earth's many biomes.

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

The pan man stands as a testament to the functionality of American cast iron cookware.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.