The Palácio Nacional de Mafra is a monumental baroque palace and monastery located in Mafra, Portugal. Built in the 18th century during the reign of King John V, it was designed to showcase the wealth and power of the Portuguese monarchy. The complex includes a basilica, a library, and extensive gardens, making it a significant cultural and architectural landmark. The palace is renowned for its impressive size and intricate details, featuring over 1,200 rooms and a stunning collection of artworks. It was classified as a UNESCO World Heritage Site in 2019, highlighting its historical importance and architectural beauty.