This 18th-century fort surrounded by a moat was used to store gun powder and ammunition, and now sits in the middle of a large part in Dublin.

British troops and Prohibition couldn’t stop this spot from becoming one of the United States' oldest continuously-run taverns.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

On Hurricane Island, a former ghost town has been transformed into a forward-thinking research center.

This museum pays tribute to the Cherokee leader who created a written language for his people.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

A historic recreation of the golden age of the Erie Canal, abandoned for some time, slowly being restored.

The place where Samuel "Slater the Traitor" brought the Industrial Revolution to America.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

The world's largest indoor go-kart racetrack is hiding in Connecticut.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.