The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

This statue honors the thousands of Allied avians that served and died for France during World War I.

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

At the United Kingdom's only residential library you can sleep among the books.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

A meow-velous tribute to a beloved street cat, made famous on the internet.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

The antique hotel still has a jail in the basement, though the cockfighting ring is long gone.

Romans built the world's tallest artificial waterfall in 271 BC.

A tribute to the truly loyal dog who waited outside a hospital for his owner to come back.

Perhaps the most scandalous statue of America's first president.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

This charming railway is one of the oldest and steepest funiculars in England.

The Virginia home of one of the signers of the Declaration of Independence is being preserved with a unique glass facade.

An odd and heartwarming stone marker enshrines the moment a community saved a farmer's pig that fell in a well.

This romantic, decaying 13th-century ruin on the edge of Sherwood Forest is reputedly one of England's most haunted places.

This isolated structure beckons adventurers with sublime views of the Faroe Islands.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.