A tunnel of hardened lava along Maui’s famous Road to Hana.

Images chiseled into the basalt here date back an estimated 300 years.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

An annual extravaganza of Broadway theater memorabilia.

Visit the monolithic tomb of America's most famous general.

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

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

Peek through the gates at this oasis from the city, full of Old English charm.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

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

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

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

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

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

Love, knishes, and best wishes from this legendary Lower East Side bakery.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

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.

Nikola Tesla's former home contains an homage hidden from plain sight.

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