This astronomically-aligned stone circle was the first of its kind to be built in Great Britain after a 3,000-year hiatus.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

A hidden three-foot-wide house separates these two regal churches.

Legend says a witch conjured the world's third largest whirlpool to protect Scotland from a nasty pirate.

The site of Paul Revere's historic two lantern warning.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

A leafy, peaceful oasis nestled in the heart of Glasgow's busy south side.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.