In addition to escorting prospective couples to and from ballrooms, this lane was also a place for gentlemen to settle scores.

The story behind this uniquely-shaped tower involves ancient empires, local legends, and new words.

Despite the name, the waters of this Canadian lake are actually blue-green in color.

The "punniest place on Earth” has nearly as many bull-themed puns as it does people.

New Zealand's oldest prison holds a dark history and the scars of a deadly earthquake.

Taihape's claim to fame is a fictional Kiwi farmer wearing gumboots.

A New Zealand rubbish dump named after British comedian John Cleese.

Taumatawhakatangihangakoauauo tamateaturipukakapikimaungahoronuku pokaiwhenuakitanatahu.

This coastal cavern is associated with the Hawaiian god of creation.

Generations of rockhounds got their start at this beloved, historic mine.

An underground wonderland in Iowa.

Abandoned tunnels dug for the once-thriving sea salt industry on the coast of southern Spain.

Peek into a cave of giant, glimmering crystals.

This 3,800-year-old site contains markers used to study the movement of the sun and moon and create a lunar calendar.

A Neolithic celestial calendar standing in a nondescript wheat field.

Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

A sophisticated astronomical tower built by one of the greatest Persian scholars of the Islamic Golden Age.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Light still pours into the ruins of this ancient Islamic observatory.

This ancient Chinese observatory still contains early astronomy technology.

One of the few places where you can explore a 1918 paddlewheel steamboat from stem to stern.

A sculpture of a flying hawk made from colorful car doors.

A giant ball made from pieces of an old Jeep.

A quirky collection of outsider art made from automobile parts.