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

These ornate manhole covers were used for a now-forgotten purpose.

A whimsical, but often overlooked clock in Park Avenue.

The origins of midtown Manhattan's anachronistic wooden farmhouse remain a mystery.

The only remaining building in New York to see the inauguration of a president is being slowly overtaken by a grocery store.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

On the Hudson resides one of the largest clocks in the world.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The home of the first American-born saint is one of the only curved buildings in New York.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

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

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

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

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

Unrepaired walls from a 1920 anarchist bomb attack.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

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

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.