A deeply beautiful 15th-century stepwell with a tragic story.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

The best place in New York to pick up the controversial, notoriously foul-smelling Asian "king of fruits."

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

During the holidays, a vintage subway train whisks New Yorkers back in time.

Prove you deserve to be fed by Kenny Shopsin.

This semi-hidden Manhattan restaurant is based out of a loading dock.

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

A very classy 1920s-era bar right in Grand Central Station.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

Become a prohibition rebel.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

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.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

The illuminating collection of L.A. street lights is run by the city and only opens one day per month.

The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

Fowl, love and death in Vietnam.

Giant pagoda houses the car that drove Thích Quảng Đức to his death by self-immolation.