One of the best-preserved Native American mounds remaining in the southern United States.

A Muppet museum in small-town Mississippi honors the roots of Jim Henson's most beloved creation.

This replica of the Greek structure is in the heart of Nashville.

An ode to "The Queen of Appalachia."

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

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

A relic of FDR's brief foray into utopian urban planning.

Two dozen pinball games hidden away inside a most unlikely location.

Burial site more than 300 years old.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

A Nessie-like monster supposedly lurks in this lake.

Rare videos and memorabilia await visitors inside this unique store.

The first documented commercial gold find in the United States.

This roadside attraction has been serving out its fair share of hearty folklore and chaos since 1858.

Jule Körner's house full of bizarre architectural details.

This North Carolina store preserves a historic moment in America's movement for racial equality.

One of the few surviving original NASCAR dirt-track speedways.

The only public swimming pool in Baltimore open to Black Americans during segregation is now a permanent memorial art exhibit.

This Asian-inspired tower in a lush urban park provides spectacular panoramic views of Baltimore.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

A museum dedicated to exhibiting remarkable outsider art.