Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

A giant green dragon crawls down from the roof of the Providence Children's Museum.

The idyllic colonial home of the artist behind the famous portraits of George Washington and Thomas Jefferson.

The second oldest Jewish graveyard in the U.S. is tiny, with connections to George Washington and Henry Wadsworth Longfellow.

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

A plaque marks the spot on the bridge where one of the first elephants in the U.S., Little Bet, was gunned down.

Oldest synagogue in the United States.

The only surviving fragment of the lost Narragansett Pier Casino.

A 60-room castle constructed by a horse-racing heir.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

From horses to stainless-steel trucks, this iconic Providence burger wagon is one of the oldest mobile diners in the country.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

An ancient cemetery with some historic bodies underfoot.

To avoid the demolition costs this abandoned drawbridge was simply left in the up position.

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

Mysterious stone tower featured in many alternative histories of the New World.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

A historic fort commemorating the United States' naval history.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Outposts of this restaurant chain were shaped like jaunty chapeaus.

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.