For 33 years, a French rural postman quietly spent his spare time collecting stones from the roadside, turning what began as a chance discovery into one of Europe's most unusual architectural landmarks. Joseph Ferdinand Cheval, better known as Ferdinand Cheval or Facteur Cheval, started building the Palais Idéal (Ideal Palace) in Hauterives, France, after stumbling across a strangely shaped stone during his postal route in April 1879.

For 33 years, a French rural postman quietly spent his spare time collecting stones from the roadside, turning what began as a chance discovery into one of Europe's most unusual…

In 1879, a French postman noticed an oddly shaped stone during his daily mail route. Instead of leaving it behind, he carried it home. That small decision sparked a 33-year…