This small road tunnel is the only place where you can cross beneath the Erie Canal.

Western New York's largest independent bookstore doubles as a historical repository of all things Niagara Falls.

This sprawling woodland estate was the brainchild of iconic American industrial designer Russel Wright.

This giant boulder is sandwiched between apartment complexes in upper Manhattan.

This 220-year-old house is a reminder of New York City's Dutch past.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.

The oldest Dutch colonial stone house in New York City is a hidden gem on the border of Brooklyn and Queens.

New York City's only radical feminist independent bookstore.

Final resting place for the Triangle Shirtwaist fire’s unidentified victims.

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

This whimsically unique butterfly farm focuses solely on creating habitats for the gentle insects.

The oldest living organism in New York City. Maybe.

This small Catskills village has six independent bookstores and more bookshops than restaurants.

One of the earliest bowling lanes in the U.S. doubled as a sewing school during a time when women had little job opportunity.

The largest known open fault in the United States is basically a giant natural refrigerator.

"Call for the doctor, call for the nurse... Vote!! said the lady with the alligator purse."

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

Two community gardens under the elevated subway lines on a very busy commercial strip in Bushwick.

The gilded vestiges of a sterling department store can still be found in a Brooklyn shopping center.

The oldest continuously inhabited street in America.

This abandoned ironworks was once the most important military supplier in America.