This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

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

If you were standing here on October 5th, 1950, you'd be dead.

Queen Anne style apartment house built in 1886.

Once a flowing stream and where the USS Monitor, the world's first ironclad, was built and launched.

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

A 9-story, poured concrete structure which was used as a glue factory with an indelible smell.

A 120-year oil leak slowly unleashes more gallons of oil than the Exxon/Mobil disaster.

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

Feral cats keeping the rodent population at bay all across Greenpoint waterfront.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

Once a dumping spot, now a park with a kayak launch.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

Townhouse facade doubles as an RMS Titanic Memorial.

Tucked in the back of this amazing antique store is an important piece of medical history.

Holding the most bodies of any cemetery in the United States.

The most confusing clock in New York.

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A very classy 1920s-era bar right in Grand Central Station.

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

Try not to get slimed in Tribeca.

Elevated freight railway turned wildly successful urban park.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.