Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

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

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

Come for the waffles, stay for more waffles.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

Final resting place of two dozen New York City harbor ships.

Devotional offerings and pleas for intercession are left at this Depression-era shrine inside a nature preserve.

During the American Revolution, this mansion hosted failed peace talks between the British and Americans.

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

An extensive collection of fine art devoted to man's best friend.

Unusual books about food and drink abound in this 19th-century New York townhouse.

A temple belonging to the largest Buddhist order in South Korea nestled in the middle of New York City.

A uniquely lettered street sign marks the corner where the iconic word game was invented.

A riverfront park that both remediated and preserved its industrial past.

These sculptures were designed to beautify this neighborhood when it was established in the 1940s.

Nine nice parcels of land along a flight path offer a quiet respite... until a plane soars overhead.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

The final resting place of some of Staten Island's earliest settlers and their descendants.

The highest natural point in New York City and all of the Atlantic coastal plain.

Staten Island's original central park is the former home of the city water supply as well as thousands of immigrant graves.

Nondescript elevator doors open to reveal a stunning, surreal world.