A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

The remnants of a creative early method of wildfire prevention.

Religious statues built because of one man's bargain with God fill this peaceful sculpture garden.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

What is the Thing?

This historic national park is covered in the stunning ruins of red rock pueblos.

See massive fossils that are over 200 million years old in northeastern Arizona.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

The walls and streets of the ancient city are peppered with penises.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Iconic red and white plaques show the creative names invented to navigate the city streets.

A flooded Mexican cave that hides a river beneath the water.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.