Along the historic Mother Road is an old gas station with a secret counterfeiting past.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

The top of a giant mesa, just outside of Amarillo, appears to float in the sky above.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

An enigmatic modern marker left next to a historic Roman site.

This Italian dam is covered in salt-hungry goats who manage to scale its almost vertical face.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

This winding road through an Italian canyon may be the most scenic drive in the world.

This abandoned Brutalist treehouse is a hidden architectural relic.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Crushed coral and crystals give the sand its signature coloration.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

Giant, pink stuffed rabbit on an Italian mountain.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

Pilgrimage site for star-crossed lovers.

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

Jesus' footprints and the first catacombs in the world.

2300-year-old Roman road connecting the empire.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.