Dinosaur eggs were first discovered at these fiery red cliffs.

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

An exquisite and eclectic selection of African masks stands out within a massive woodcarving marketplace.

Whimsical woolen creatures have taken over this historic Northern Ireland park.

The giant club-wielding wildman stands proud as the symbol of Swedish Lapland.

Locals dubbed this abandoned abode the "gingerbread house" because of its odd architecture.

This ruined medieval castle was the scene of Lord Robert Dudley’s seductive reception for Queen Elizabeth I.

This Tuscan church contains a gallery of over 700 ex-votos depicting near-death experiences.

To find the "unicorns of the deep" you've got to go downstairs.

Dedicated to the first German Chancellor, Otto von Bismarck, this aging edifice is the only one of its kind in the Americas.

A golden egg-shaped sauna in the Arctic tundra.

The red letters in the literary pavement leading to the library form a mysterious code.

The best place in the world to buy tinned fish.

This kitschy tavern is also home to rare early editions of "Treasure Island."

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

The romantic botanic tunnel feels like a well-kept secret.

This 11th-century temple gave rise to the word "juggernaut," as well as some mysteries that defy scientific explanation.

A spectacular rainbow of stained glass makes the "Pink Mosque" one of the most beautiful in Iran.

A historic cemetery doubles as a museum containing hundreds of unique tombs sculpted by a single artist.

A deserted Bedouin village lines the shores of this stunning desert oasis.

A unique museum dedicated to the Gullah-Geechee people, housed within an old oyster cannery.

A cemetery full of exquisite statuary, including a monument to a woman some say died of a broken heart.

Local lore says two enemy dragons live within these breathtaking mountain lakes.

A hidden tunnel leads to a medieval queen's shrine buried beneath a parking lot.