Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

Ten acres of the Kula Forest Reserve make up this wondrous state park.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A carriage house converted into what resembles an 11th-century English manor house

Created by four famous men, the beautifully designed Buffalo State Asylum was resurrected as a hotel and art center, but still boasts a ghost story or two.

Ruins of a once-prized railroad station in New York.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

"Where the ducks walk on fish."

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

Memorializing an American tragedy of massive proportions.

Steepest flood safety railway in the entire world.

Memorial built in 1922 in remembrance of WWI casualties.

A giant light 13 feet high shines near Thomas Edison's old Menlo Park lab.

The final resting place of a famous 19th-century murder victim whose identity is still a mystery.

Failed state-supported institution meant to rehabilitate students with intellectual disabilities.

The highest natural point in New York City and all of the Atlantic coastal plain.

Once America's longest-manned military fort, now an abandoned hulk.

The pioneering photographer's prints are immortalized inside her childhood home.

Staten Island's original central park is the former home of the city water supply as well as thousands of immigrant graves.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

A town trapped in time - 1958 to be exact.