The Palace of Mafra, a grand architectural ensemble, is a testament to Portugal's Baroque and Neoclassical periods. Initiated by King John V in 1717, this palace-monastery was completed in 1755 and is a symbol of the Portuguese Enlightenment. Its historical significance was recognized when it was inscribed as a UNESCO World Heritage Site in 2019. The palace is not only a marvel of design but also houses a significant library, a basilica, and a convent, reflecting the opulence and cultural ambitions of the 18th-century Portuguese monarchy.