Once America's longest-manned military fort, now an abandoned hulk.

The famous author's cottage hideaway.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

New York's oldest and possibly grandest keeper of books.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

Prove you deserve to be fed by Kenny Shopsin.

This semi-hidden Manhattan restaurant is based out of a loading dock.

Ride the subways of yesteryear.

A hands-on traveling collection of the innovative devices of yesteryear.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

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