An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

The last SR-71 ever constructed.

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

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

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

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

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.

Few of the many visitors to this resort town know of its hidden Maya ruins.

An island graveyard with spectacular views of the Caribbean.

A Lovecraftian altar of nightmarish bronze chairs sits ominously on a boardwalk in Puerto Vallarta.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

"Only the devil could play golf here."

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

The echoes of a railroad town that solemnly mark the end of the line.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

A land of debatable treasure.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.