The ruins of a monastery where Saint Bridget of Sweden had her revelations recorded.

This runestone once destroyed by an explosion has been painstakingly reassembled to save its history.

Part of an abandoned19th-century fortress hides in plain sight inside a modern office building.

A bit of retro transportation flair preserved in the world's largest department store.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

A popular European tradition makes its way to the states on one of America's most famous bridges.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

One of only two commuter aerial tramways in the United States.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The "Seinfeld" diner.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A semi-scholarly approach to sex.

Elevated freight railway turned wildly successful urban park.

A terrific purveyor of natural history objects and curios.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

The eccentric mansion of one the most popular horror authors of modern times.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A mysterious castle built as a monument to lost love.