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.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

Nope, not Washington Irving's house.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

You must take the A train... to the last active cemetery in Manhattan.

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

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

Walking around West Harlem reveals a scavenger hunt of beautiful bird murals.

Red frames showcase remnants of one of New York's original subway stations.

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

There are owls with glowing eyes in Herald Square.

The first piece of public art dedicated to LGBT rights.

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

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

Hiroshima survivor on Riverside Drive.

The 28-foot granite map plots the locations of 40 theaters in New York City.

Phil Mortillaro uses keys to bring art back to the Village.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

A posh members-only club with a literally dramatic history.

The most confusing clock in New York.

The oldest living tree in Manhattan comes shrouded in sinister legend.

There must be a pun in this haystack somewhere...

A Manhattan Episcopal church with an eerie underground crypt.

Commemorating the spot where the famous scientist fed his pigeons.