CC BY 4.0, Etienne O. Dallaire, Wikimedia Commons

Landmark· Folegandros· Greece — Cyclades

Folegandros Kastro

36° 37.7′ N · 24° 55.2′ E

The medieval walled quarter of Chora, built to protect the islanders from pirates. Its continuous ring of houses forms the outer wall, and its north face drops straight down the cliff.