The Royal Palace of Madrid, with its expansive 135,000 square meters of floor space and a staggering 3,418 rooms, is indeed the largest royal palace in Europe. It's a magnificent example of Baroque architecture, reflecting centuries of Spanish history. While it remains the official residence of the Spanish royal family, it is primarily used for state ceremonies. Visitors can explore many of its rooms and marvel at the rich collection of art and historical artifacts, making it a significant cultural treasure and a must-see destination for tourists in Madrid.