A geological mystery on Camelback Mountain.

The remains of a religious colony, its amusement park, zoo, and baseball empire.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

A sculpture of a salmon swimming through a brick building.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

The magic's in the hole!

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A wall of chewing gum moonlights as collective art.

An accidentally hidden library containing the ephemeral history of New York.

Currently housing a corporate bank branch this building at the southern tip of Manhattan was once the gateway to luxury vacationing.

There must be a pun in this haystack somewhere...

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

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

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

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

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

Elevated freight railway turned wildly successful urban park.

This Art Deco landmark claims to be the longest bridge over the shortest span of water in the world.

Over 60 chemical plants and oil refineries sit in a 15-mile-wide section outside town.

This famous church is adorned by a mural commemorating the independence of Vatican City.