Ecuador’s capital (and second-largest) city has a setting of great natural beauty, overshadowed by the volcano Pichincha with its twin peaks of Ruco and Guagua. Quito is located at 2850m (9348 ft) above sea level and some visitors may suffer from altitude sickness during the first hours after arrival. Quito used to be a major Inca city that was destroyed shortly before the arrival of the Spanish conquistadors. Although no Inca traces remain, the city has preserved much of its Spanish colonial character, the cathedral in the Plaza de la Independencia (the oldest church in South America) and the many old churches and monasteries being among the most notable instances. Also in the plaza is the Municipal Palace, the Archbishop’s Palace and the Palacio Presidencial. Many of the city’s famous churches and monasteries contain priceless examples of Spanish art and sculpture, particularly the Monasterio de San Francisco (located in the beautiful plaza of the same name) and the Jesuit church of La Compañía. Most of Quito’s colonial churches are located in the Old Town, parts of which have been listed by UNESCO as a World Heritage Site. Perhaps the best preserved colonial street is the historic alley of la Ronda. Other places in Quito worth visiting include the Parque la Alameda (a triangular-shaped park), the astronomical observatory, the School of Fine Arts and the modern Palacio Legislativo. As the cultural and political capital, Quito has a number of museums of colonial and modern art. The Museo del Banco Central, located in the Casa de la Cultura, has a vast archaeological repertory as well as displays of colonial furniture and religious art. Also of interest is the Museo Guayasamín, home to many fine works of Ecuador’s renowned modern artist Oswaldo Guayasamín.