Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

Walk over a 150 year old manhole.

A hands-on traveling collection of the innovative devices of yesteryear.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

A dilapidated dock tells the story of Titanic's missed arrival.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Seven beautiful 1,000-year-old rock-cut Buddhist statues.

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

A 32-acre fun park dedicated to all things cheese.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

The city of Palestrina was built around this magnificent terraced sanctuary dedicated to the pagan goddess Fortuna.

A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

The oldest still-operating tavern in the United States was once owned by a pirate.

Aged nearly 1,700 years, the world's oldest bottle of wine is probably still drinkable.

A patchwork of ruins from various civilizations in one of the world's oldest continually inhabited cities.

A world-class theater sits hidden in this remote town in West Iceland.

At this museum in Iceland, visitors can sample fermented Greenland shark.

These enigmatic columns tower over the ruins of an ancient Toltec city.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.