The Mosteiro de Santa Maria is a historic monastery located in Batalha, Portugal. Built in the late 14th century, it is a prime example of Gothic architecture and was constructed to commemorate the 1385 victory of the Portuguese at the Battle of Aljubarrota. The monastery is a UNESCO World Heritage Site, recognized for its intricate stonework and stunning stained glass windows. The monastery features a beautiful church, a cloister, and various chapels, showcasing the artistic achievements of the period. It is also the final resting place of several Portuguese monarchs, including King John I and Queen Philippa of Lancaster. Visitors can explore its rich history and architectural beauty.