The fairy tale castle of the "fairy-tale king."

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

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

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

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

Yo, Adrian!

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

A layered tribute to the work of mosaicist Isaiah Zagar.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

An underground magnet for ever-changing street art.

An abandoned stretch of highway, deteriorating next to the operational one.

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

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

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

A local prank turned town icon.