Atlas Obscura
Lazareto de Menorca in Es Castell, Spain
Hidden on a small island in the middle of Mahón Harbour, the Lazareto of Menorca is one of Europe's largest and best-preserved maritime quarantine stations. Built during the 19th century, it was designed to isolate ships, passengers, and cargo arriving from ports affected by deadly diseases such as plague, cholera, and yellow fever. Long before antibiotics and vaccines, quarantine was one of th…