A daily replay of the experiment that proved the rotation of the Earth.

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

This colonial mansion has been home to a staggering number of American historic figures.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

A toxic ghost town sitting atop a massive coal fire.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

The oldest farmer's market in America is so ancient it was approved by the King of England.

A local prank turned town icon.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

Huge masonic hall in Philadelphia with lavishly themed rooms.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

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

This quaint archive of the silent era preserves and pays homage to a seminal moment in film history.

The longest burning light bulb in the world.