A collection of haunted objects and macabre oddities under one roof.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

A unique set of caves that spits waves back out into the ocean.

One of the smallest towns in the United States.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

One of the most important yet well-hidden museums dedicated to the history of medicine.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

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

The Pope’s secret escape route.

2300-year-old Roman road connecting the empire.

Jesus' footprints and the first catacombs in the world.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

The best Tiki bar in Las Vegas.

A school-themed restaurant where gastronomy is the core curriculum.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

A serene temple with stunning stained glass hides in downtown Dallas.

Belly up to the bar in Cowtown, don't forget to buy some boots.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

A modernist landscape of water and sci-fi concrete.