The world's most remote airport.

The largest stone moai on Rapa Nui.

These abandoned waterworks are crumbling into the Potomac River.

The remains of an old sawmill, gristmill and the surrounding industry dating back to the 18th century.

This Great Depression-era creation was once known as the strangest house in the world.

Come for the Italian food, stay for the taxidermy and giant statues.

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

World War II bunker still standing on the New Jersey beach.

This quaint New Jersey graveyard is an eternal resting place for thousands of beloved pets.

Once forgotten, this strip of sand was a rare beachside haven for Black Americans in Atlantic City.

Amazingly, this old machine within the Resorts Casino still functions.

Memorial built in 1922 in remembrance of WWI casualties.

If it feels like a speakeasy, that’s because it probably was one.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

FDR's Art Deco hospital tower was hopelessly inefficient.

Where British troops serving on the remote islands paid tribute to their faraway hometowns.

This haunting ghost ship stands beached in the waters off the coast of the Falkland Islands.

The southernmost Anglican cathedral in the world has whale bones standing in its yard.

This secluded walking trail is a hidden gem of a Pittsburgh park.

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

One Pittsburgh musician's decades-in-the-making memorabilia collection is on display at this rock-n-roll curio shop.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

The legacy of baseball great Roberto Clemente is preserved in a retired Pittsburgh fire station.

This public park was the site of the largest civilian disaster of the Civil War.