This charming stone church on the shore of Lake Tekapo is an icon in astrophotography.

A doorless and windowless folly in England that evokes curiosity over its mysterious origins.

A large wave-cut shelter, a major archeological site, overlooks the dry basin of Winnemucca Lake.

Despite the name, this unusual palace in rural Tunisia never belonged to an Italian dictator.

The castle used by the Danish Royal Family as a hunting retreat.

At this barrel organ museum, history and live concert keep Dutch street organ culture alive.

Secluded springs in the Rio Grande Gorge offer hot bathing beside the haunted ruins of a stagecoach stop.

The top of the holy mountain for the ancient Spartans looks like a pyramid—is it man-made or a natural phenomenon?

This uniquely shaped slab of volcanic rock has been used by generations of Antarctic explorers.

A winding staircase that appears to lead to nowhere is actually a diving platform into the Wellington Harbour.

Local authorities nearly destroyed this mural before a viral video rallied international support to save it.

The world's first fully-fenced urban ecosanctuary is a haven for New Zealand's rare and endangered species.

Founded by French colonists in 1919, this mountain resort has been transformed into one-of-a-kind theme park.

This gem of Moorish architecture is slowly disintegrating along the coast of this charming town.

Geothermal resources are cooled in this oddly-shaped structure before being used for irrigation

After 400 years of being closed to the public, this monastery's underground tunnels and secret garden are now a museum.

Hang with reindeer at this 400-year-old Sámi market.

According to a gruesome legend, an architect sacrificed his wife to build this spectacular, 16th-century cathedral.

These concrete crustaceans are actually public restrooms.

Travel back in time at a Moroccan-inspired restaurant that was the height of glamor in the 1970s.

The medieval ferry service has been going strong since the 14th century.

The ruins of this magnificent Scottish castle blend both Gothic and Renaissance architectural styles.

A charming Amazigh village carved into a mountaintop.

Grab a life-changing ham sandwich at this former horse butchershop.