The Crystal Palace in Madrid's Lichi Park, once a royal refuge, is now often used as a temporary exhibition gallery for the Sofia Museum of Art. The Crystal Palace is built on the lake, where there are several roots and trunks of Italian cypress immersed in water. The Crystal Palace is modelled on London's Crystal Palace. The whole building is made of iron and glass. Swans swim in the water fountain. The Crystal Palace is beautiful both in appearance and in interior. By the end of the week, there are many people here.