Two small markers remember the Alamo's feline protectors.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

These boots are made for selfies.

This tiny man looms large over downtown Charleston.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

Phil Mortillaro uses keys to bring art back to the Village.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

The former hotel where Tesla invented the radio.

New York City's smallest piece of private property.

Where the four original members of the Ramones hung out and revolutionized punk rock.

An easy to overlook storefront hides some of the most authentic and regionally diverse Chinese food in New York.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

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 sculptural commentary on capitalism pokes up from the East River.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

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

Unrepaired walls from a 1920 anarchist bomb attack.

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

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

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Elevated freight railway turned wildly successful urban park.