World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

Step inside Lucy, the world's largest "elephant."

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

A historic lighthouse steeped in rumors of ghost and pirate stories.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

A mysterious air force base built to resemble a Long Island fishing village.

An architecturally unique lighthouse that had to be lifted up and moved to avoid falling in the sea.

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

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

This blue behemoth of a bear is a colorful homage to Brown University's mascot.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

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

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

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

Once the largest attraction in Rhode Island, this former amusement park is now a gorgeous coastal state park.

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

Abandoned Coast Artillery fort now serves as a graffiti canvas and sightseeing vantage point.

The secluded beach getaway from Wes Anderson's dreamy summer romance.

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

Designed to not only to represent the history of the local community but also, the future.

An ode to Japanese artist Hokusai, with a bit of a comical twist.