In 1787, a group of delegates met at this very spot to drink, be merry, and ratify the Constitution of the United States.

An extensive, if one-sided, history of U.S. law enforcement's war on drugs.

The U.S. Navy’s preposterously detailed mini battleship took 77,000 hours to complete.

Part of a WWII submarine is lurking outside the Washington Navy Yard parking lot.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

This church doubles a museum dedicated to Norwegian heritage.

There are owls with glowing eyes in Herald Square.

There must be a pun in this haystack somewhere...

A bit of retro transportation flair preserved in the world's largest department store.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

The oldest continuously inhabited street in America.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

Neon signs that grace the windows of Bergdorf Goodman's and Tiffany & Co. come from this studio in Brooklyn.

"A hideous albatross in the Hudson River Valley."

The final resting place of President Chester A. Arthur and hundreds of others from Revolutionary War soldiers to poets, politicians, and painters.

West Point’s only monument to a woman veteran stands above an empty grave.

This might just be the TARDIS of bookstores.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

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

These lush botanical gardens employ the most purrfect pest control force.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The first American home of the isolated, egalitarian religion has a trove of Shaker architecture and artifacts.