255 feet of suds, scrubbers, and blow dryers.

A 131-year-old wunderkammer of Texas history.

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

A giant "X" symbolizes the blood spilled from the brutal Juárez drug wars.

The outcropping is graffitied with the name of the beloved musical Muppet television series.

What is the Thing?

An incredible airplane graveyard sits outside this small museum dedicated to preserving aviation history.

In 1975, a forestry worker in Arizona claimed to have been abducted by a UFO.

A clear blue swimming hole with hidden caves, still unexplored.

Metal sculpture folk art lining the Kansas Highway.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

This three-dimensional brick mural is the longest of its kind in the United States.

A fountain standing as a testament to a doomed alliance.

The wreck of a World War II cargo ship has become an unintentional time capsule at the bottom of the Red Sea.

A network of ancient Egyptian tombs built into the cliff face along the Nile.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

It might not be the prettiest pyramid in Egypt, but it may be the muddiest.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.