Visit the site of a subway powered by nothing more than air--and lots of it.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.

The rare American Civil War-era weapon was never fired in anger.

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

The return of something once considered a basic part of life.

A playground the size of a city block is a modernist monument to civic values and public housing.

A historic lighthouse steeped in rumors of ghost and pirate stories.

Nearly four centuries after its founding, remnants of one of the oldest planned communities in North America are still visible in southern Brooklyn.

Headquarters of the world's fourth largest Hasidic sect and the first of many "770s" around the world.

This nostalgic blast from the grooming past is also a working barbershop.

A hidey-hole sandwiched between cellphone, DVD, and jewelry stores features Tibetan delights.

The Hudson River School comes alive at this palatial estate.

A Gothic-style abode built to accommodate the church's three resident peacocks.

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

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

19th century cemetery hidden in Brooklyn's Prospect Park.

I fought the law and the precinct caved in.

Town full of spiritualists, some of whom are mediums, is still in full swing after 130 years.

Three acres of mythology-inspired sculptures are visible from the highway.

A modern zoetrope on the New York City subway.

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.

A whimsical, but often overlooked clock in Park Avenue.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.