After the capital, this is the second most important city in Guatemala, set amongst a group of high mountains and volcanoes. Although Quetzaltenago (often referred to as Xela) is quite modern, it also contains narrow colonial streets, broad avenues, fine public buildings such as the neoclassical City Hall, Municipal Theater and Natural History Museum, and a magnificent central plaza. It is also an important center for language schools. Other places to visit outside the city are the hot sulphur springs at Fuentes Georginas, Aguas Amargas and Los Vahos. Several picturesque towns include Salcajá with the 16th-century Church of San Jacinto, Zunil, dominated by the ornate façade of its church and one of the places where Maximón is still worshipped actively (see Santiago Atitlán below), San Andrés Xecul and San Francisco El Alto.