Healing waters from a holy well, previously used by locals for doing laundry.

For many years, the origin of these enigmatic artificial caves was the subject of debate among historians.

An eerie cluster of medieval cave-like tombs carved out of a cliff, hidden in a historic mountain pass.

Legend has it that the devil itself built this portal on a dare.

This Old Town cabin tells the story of Tacoma's settlement through a replica of its first non-Native building.

The castle that provided the setting for much of 'Monty Python and the Holy Grail' is now a pilgrimage site for fans.

Locals believe this abandoned ruin on the outskirts of Bucharest is haunted.

This 10th-century seaside abbey holds spectacular views and a window into the past.

Everyone's favorite clay duo immortalized in bronze.

Can you see the face staring out at you from the buttress of this bridge?

An aromatic exploration of the rich history and flavors of this German town's famous gingerbread.

On market days, a tax collector sat in a small cave at the end of this arched bridge.

This retro diner claims to be the birthplace of poutine.

A series of stained glass artworks that depict images of the hit TV show.

For many years, the river that Julius Caesar led his army across into Italy was lost until re-identified.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

This ruined castle is said to be the legendary keep of a Viking princess.

A 12-foot-tall metal fisherman looks out over the promenade.

On one of the tiniest islands in the Caribbean lies a nearly 300-year-old syangogue.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Hike, ski, or snowshoe to a backcountry yurt that serves up gourmet, four-course dinners.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

A map made up of 32 different materials, representing Ireland's 32 counties.