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

A mysterious statue of a leather jacket-clad rebel leans coolly on an odd yellow clock.

This high-perched pachyderm marks the memory of not one, but two elephants gunned down in small New England towns.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Spies, love letters, and ghost stories have all left their mark on this home-cum-museum.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

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

A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.

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

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

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

There are owls with glowing eyes in Herald Square.

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

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.