Mies van der Rohe Pavilion, known as the Barcelona Pavilion, is a structure built of glass, steel and marble in 1929 AD. It is considered one of the main works of modern architecture in the city, and provides an audio guide describing the entire history and characteristics of the building. Do not miss the opportunity to visit this building, which is distinguished by a beautiful contrast between its simple design and the luxurious materials used in its construction.