The painter who popularized "bulls" and "bears" as symbols for the stock market didn't get a proper headstone for over a century.

Final resting place of the immigrant who brought artificial seltzer water to America.

This seemingly unremarkable boulder is said to bear the hoofprint of the devil himself.

A heartbreaking monument showing the last morning in the life of Jane Griffith.

The inventor of the Coney Island hot dog rests in a grand mausoleum in Brooklyn.

This controversial statue has migrated twice in its life.

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

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

Unrepaired walls from a 1920 anarchist bomb attack.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

A well-worn marker in a forgotten alleyway is all that remains of what had been one of Manhattan's most beautiful buildings.

Magnificent New Deal Murals evoke a time when New York City harbor was one of the world's greatest and busiest ports.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

Stunningly detailed mosaics in a New York subway station bring life to the Weimaraners of artist William Wegman's work—and to thousands of commutes.

Twenty-three trees, each paired with a basalt stone, line a street in Chelsea, continuing an urban project started by German Fluxus artist Joseph Beuys.

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.

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

An artist's cute bronze subway sculptures belie his violent artistic past.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

Elevated freight railway turned wildly successful urban park.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.

A reminder to choose water over wine since 1888.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.