This unusual subway stop was originally a real estate office.

A mosaic made of materials gathered from this Brooklyn community adorns the walls of this tunnel.

This recently uncovered ad for Lindsay's run at Mayor in 1965 had been hiding for decades underneath a billboard.

A miniature version of a legendary Dutch boulder.

Oldest surviving example of a Dutch saltbox frame house in America.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

Queen Anne style apartment house built in 1886.

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

Once a ferry dock, radio transmitter, and now a new Greenpoint park.

Known as the "Forgotten City" it was home to industry, riots, artists, squatters, and to one of the largest single disaster fires in New York City.

Constructed in the 1920s, this former pencil factory is now an office building.

Ornate "Renaissance Revival" style building.

The only remaining Jewish congregation in Greenpoint.

Built as a home for the Union Porcelain magnate in 1867, now the Greenpoint Reformed Church and home to a ceramic mystery.

Church featuring "high Victorian gothic" architecture.

Abandoned power station once home to a squatter community, now being developed into an arts center.

New York's oldest concrete structure is being preserved thanks to the gentrification of Whole Foods.

This striking art museum holds an amazing series of curiosity cabinets.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

Statue dedicated to the star of an old television show.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

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

An institution dedicated to the towering buildings that make up skylines in New York City and around the world.

This Indianapolis landmark offers a secret panoramic view of the city.