Did you know a mailman made a castle in France?

Le Palais Idéal is an 85-foot-long, 33-foot-high castle located south of Lyon made from rocks that a 19th-century French postman picked up during his mail route over the course of 34 years. Even though the mailman had no formal architecture training, he built the castle himself including the pillars, grottoes, and flying buttresses. Today, the massive structure still stands and visitors still go see it today.