The Sanctuary of Arantzazu is a beloved Franciscan sanctuary in Oñati, Spain, known for its peaceful atmosphere and stunning mountain surroundings. Legend has it that the Virgin of Arantzazu appeared to a shepherd in 1468 among thorny bushes, giving rise to the sanctuary's name. The basilica, completed in the 1950s, features impressive architecture by renowned artists like Eduardo Chillida and Jorge Oteiza. It's a popular destination for both devotees and tourists, offering hiking trails and a rich cultural history. Don't miss the main festivity on September 9!