A miniature golf course crafted inside the world's largest simulated cave.

The untimely death of a dignitary's daughter led to this fort being abandoned before it was ever finished.

A collection of over 15,000 zines works to preserve DIY publishing culture.

This eclectic collection documents the wild legacies of "America's Wickedest Street."

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

This was once the largest city in Kazakhstan, and a major stop on the Silk Road.

A record-size collection of wild-haired troll dolls tells the story of the mythical creature's roots in Scandinavian folklore.

Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

The wreckage of a World War II bomber is hidden high in the Colorado wilderness.

A collection of fading fantasy tchotchkes lines this dirt road in the Colorado wilderness.

The historic site where Queen Elizabeth I once gave a searing speech.

The only museum in the world dedicated to preserving the life and work of American comedian and entertainer, Phil Silvers.

For over 500 years this timbered alms house has provided a home for elderly residents of Coventry.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

An extraordinary mix of Phoenician, Roman, early Christian, and Byzantine ruins beautifully set overlooking the Mediterranean.

This column celebrates Rome's victory over the Goths, and may be the oldest Roman monument in Istanbul.

One of the first monuments dedicated to the accomplishments of the great Vice Admiral, Horatio Nelson.

The enigmatic and seldom visited ruins of a Mayan city-state.

This isolated Maya cemetery in Chiapas is distinguished by its towering, colorful wooden crosses.

The Acropolis of this little-visited Mayan archaeological site offers great views of Chiapas’s Lake District.

This series of waterfalls tumble into a radiantly blue river.

An open-air museum of 18th-century homes and churches transported from various villages in Southern Poland.

The sunlight passing through the opening of this huge cave system creates a magical effect.