One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

This abandoned subway station can still be seen on regular commuter trips.

This woodland architectural installation acts as a camera obscura for the heavens.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

The first pet cemetery in the United States.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

The magic's in the hole!

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

The first declared National Monument in the United States.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Hear the quietest sound from across the dome.

A 120-year-old legend concerning an empty circular patch in the North Carolina woods.

Twenty-eight years after this local landmark was washed ashore by hurricane Hugo, it was washed away by hurricane Irma.

Paths are maintained, but trees have taken over plots.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.