Hospital de Sant Pau is a historic hospital complex located in Barcelona, Spain. Designed by architect Lluís Domènech i Montaner, it was built between 1902 and 1930 and is renowned for its stunning Modernisme architecture. The hospital served as a medical facility until 2009 and is now a UNESCO World Heritage Site. The complex features beautiful gardens and colorful mosaics, making it a popular destination for visitors. Today, it houses various cultural and educational institutions, preserving its historical significance while promoting art and knowledge in the community.