Take a drunken tour inside the world's largest known geode.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

The bones of an old zoo crumbling in the shadow of a new one.

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

A humble homemade ride attracts visitors from around the globe to this small Midwestern town.

The only freestanding table rock formation east of the Mississippi.

If astronomy had a ghost, it would look like this observatory.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

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

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

Radioactivity still cause for concern at this urban explorer's paradise.

A monument to the love people have for their pets.

This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

Local legend says that someone is buried in the trunk.

The remains of the first public diamond mine in Arkansas.

The only diamond mine in the world where you can keep what you find.

360° views of the city plus five floors of optical illusions and hands-on science.

The world's only museum devoted to the wonders of fluorescence.

Research station devoted to mysterious floating lights seen in a Norwegian valley.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

A mysterious spot where the laws of gravity seem not to apply.