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

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

An unassuming secret door once led to a legendary watering hole.

Historical figures from New York City's Catholic community reside in Midtown.

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

New York's oldest and possibly grandest keeper of books.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

A hidey-hole sandwiched between cellphone, DVD, and jewelry stores features Tibetan delights.

The home of former Heavyweight Boxing Champion, "Gentleman Jim" Corbett.

In the middle of suburban Staten Island, a nearly 150-year-old bakery is preserving the art of a disappearing New York treat.

These century-old townhouses contain some of the first car garages built in the United States.

A one-ton statue of Steve Rogers beautifies the entry to a Brooklyn Bed, Bath & Beyond.

Guerilla gardeners reclaimed this abandoned railroad land literally putting down roots.

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

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

The graveyard holds the remains of Irish immigrants who arrived in Queens after fleeing the Great Famine.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

There's a piece of New York City transportation history hidden in plain sight at a Manhattan subway stop.

A whimsical, but often overlooked clock in Park Avenue.

Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

An arcade packed with a rotating collection of unique independent video games.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.