A replica that won't float away.

A sculpture for the sun and stars, created by Nancy Holt.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A new kind of theme park for adults off the Las Vegas Strip.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The only Florida state park with publicly accessible caves.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

France's most famous cemetery, with some of its most curious tombs.

Site of a former hidden treehouse in New Orleans.