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.

100 massive sculptures in the Hudson River Valley.

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

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

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

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

The stone sculpture of an Ottoman soldier is an homage to a lost Providence landmark.

Rhode Island's tallest building bears a resemblance to the "Daily Planet" building and has been empty for more than five years.

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

Final resting place of one of the classic authors of horror literature.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

Yo, Adrian!

Alexander Hamilton’s creation caused quite a bit of controversy.

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

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Perhaps the most scandalous statue of America's first president.

The 28,000-year-old specimen is remarkably intact.

An overlooked memorial honoring the local Washington residents who died in World War I.

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

The site of the climactic scene from the classic horror film is now a historic landmark.

Though the case is scorched and the buttons half-melted, this hardy handheld gaming device can still run a game of Tetris.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.