A Natural History and Science Emporium.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

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.

Elevated freight railway turned wildly successful urban park.

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.

The site of the deadly Triangle Shirtwaist Factory Fire.

World's first "penitentiary," meant to be humane, drove men insane.

Dr Barnes' $25 billion private collection of art and arboretum.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

Mysterious 500-year-old tapestries depict a unicorn hunt.

A whimsical monument deep in this park commemorates the groups that helped build it.

The Hudson River School comes alive at this palatial estate.

The home of the Dead Sea Scrolls is an abstract modernist dream.