This massive marble memorial was built bit by bit either out of devotion or spite, but at the expense of the surrounding town.

Stories of sightless fish and ghostly cowboys are only a fraction of the legends surrounding this Kansas sinkhole.

Replica of an old Esso filling station, complete with Wayne gravity pump and outhouse.

A rapidly disappearing authentic bit of the old south.

More than 21,000 images fill this overlooked gem of a prehistoric site.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

A clear blue swimming hole with hidden caves, still unexplored.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

A museum dedicated to the alleged Roswell Incident.

An aviation relic that made coast-to-coast travel possible.

Brain collection and database that narrows the gap between man and animal.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

The singer, actor, and activist lived here during his final years, and now it’s a museum dedicated to his legacy.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

Penn State's giant bug collection.

A hollow cement depiction of time's inexorable effect on the human body.

Annual celebration commemorating the 1965 sighting of strange lights in the town.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

Maine’s only official memorial to the Underground Railroad.

A unique attraction and museum dedicated to exploring iconic roadside structures.

This ancient statue of Dionysus lies unfinished and abandoned in one of Greece's oldest quarries.