Batalha, Portugal
The Masterpiece of Stone: Mosteiro da Batalha
Built to commemorate the Portuguese victory over the Castilians at the Battle of Aljubarrota in 1385, Batalha Monastery is a breathtaking display of Manueline and Flamboyant Gothic styles. It took over a century to build (from 1386 to 1517), involving the genius of multiple master architects.