A mountain of conch shells created by centuries of fishermen.

A miniature cathedral made of 20,948 tiny pieces of marble.

In Faroese legend, this sinister horse-shaped beast lures unsuspecting passersby only to drown them in the lake.

An outstanding piece of retro Sci-Fi architecture built into a sacred mountain.

A natural history wunderkammer in the middle of the desert.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

Tiny observatory made big contributions to the study of the Earth's motion.

A tunnel dug through the side of a mountain by hand provides convenient yet death-defying access to a small village in China.

This little-known relic crypt holds stolen parts of a Roman Empress.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

A mechanized clock where a man fights off a dragon, crab, and rooster.

An architectural oddity of six stories, accessed by graceful ramps.

A city built from mud and known as the "Manhattan of the desert."

The face of the famed flier in a hillside in her hometown.