This remote Scottish island has the only round church in the nation.

A 40-foot waterfall flows into this unique natural swimming hole.

No one knows exactly how deep the world’s deepest geothermal hot spring is.

Joseph and Victor Stanzel were Texas farm boys who built a model aircraft empire.

The watery grave of Captain Bligh's famous ship.

This 17th-century fort, built by the Dutch to control a piece of the international spice trade, is now a city park.

Peek into a cave of giant, glimmering crystals.

A 30-foot-tall sculpture pays homage to what was once the Steering Wheel Capital of the World.

An internationally-recognized dark sky sanctuary lies in northern Nevada, near the Oregon line.

Inscribed on the gate are the names of 29 figures from the University's first five centuries.

The memorial honors the lives of rhinoceroses killed by poachers.

Visit 17th-century ruins on a strikingly beautiful riverside walking trail.

A statue in Balderas subway station honors the rock star who wrote about it in a song.

The first European statue dedicated to the legendary musician.

Starship-temple contains 400 tons of drinking water and offers free Japanese lessons.

This sculpture bears a tragic backstory that may have inspired a hauntingly beautiful children's song.

The first woman to become a member of the parliament of Iceland.

This ancient well once held a top-secret royal meeting chamber.

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

A section of the long chain that blocked enemy ships from entering Constantinople.

A bronze monument to his majesty, King Gino.

The preserved left hand of a saint once known as "the Pearl of York."

This lonely gravestone beside an auto parts store is a reminder of the hardships of a pioneering past.

The crumbling remains of a 19th-century textile factory.