The longest hedge maze in the world.

A B-17 bomber stands as a memorial to the residents of Tulare County who served in World War II.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

This French chateau is home to the world’s largest private collection of fighter jets.

This large, circular tomb is the final resting place of the first emperor of Rome.

According to legend, this tomb holds the secrets to time travel.

This is the oldest Roman-made bridge in the city still existing in its original state.

Past the hills and beyond the graveyard, this church feels extremely out of place.

The meteor that sealed the fate of the dinosaurs landed at this site, one of the largest impact craters in the world.

A unique rock formation that only a few have managed to venture inside.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

A concrete arrow from a 1920s network of airmail beacons is still preserved at the western edge of suburban Reno.

The ship that got left behind.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A giant desert bird that once swung music fans at Coachella now has a home in a nearby traffic circle.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

The ruins of a resort and casino sit on the banks of this blue hole spring that pumps 70,000 gallons of warm, clear water every minute.

A fire lookout atop a glacial pinnacle is reached by climbing three vertiginous flights of stairs.

Honorable ranks graduating from the prestigious Army War College work hard to maintain their high standards of honor and erase those who don't.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

For nearly 50 years this airplane that crashed during World War II remained missing in the remote Australian backcountry.

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.