In Coyoacán, a pair of coyotes crown a public fountain in reference to the ancient Aztec name of the borough.

Underneath the historic center of Mexico City, the remains of a temple dedicated to the Aztec god of the wind.

Eighty million natural history specimens call this gargantuan museum home.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Go inside to really appreciate this 500-year-old technological masterpiece.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

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

2300-year-old Roman road connecting the empire.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Deep into the lower floors of Pike Place, find a date with fowl fate.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

This candy-colored storybook village originated as a 19th-century Methodist campground.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

The site of Paul Revere's historic two lantern warning.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

According to the experts at the Guinness World's Record office, this is the longest candy counter in the world.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Elevated freight railway turned wildly successful urban park.