Pizarro sacked much of the Inca city in 1535. Remains of the palace of the Incas, Qurikancha (the Temple of the Sun), and the Temple of the Virgins of the Sun still stand. Inca buildings and foundations in some cases proved to be stronger during earthquakes than foundations built in present-day Peru. Among the most noteworthy Spanish colonial buildings of the city is the Cathedral of Santo Domingo. The major nearby Inca sites are Pachacuti's presumed winter home, Machu Picchu, which can be reached on foot by the Inca Trail to Machu Picchu or by train; and the "fortress" at Ollantaytambo. Less-visited ruins include: Incahuasi, the highest of all Inca sites at ; Vilcabamba, the capital of the Inca after the Spanish capture of Cusco; the sculpture garden at Ñusta Hisp'ana (aka Chuqip'allta, Yuraq Rumi); Tipón, with working water channels in wide terraces; as well as Willkaraqay, Patallaqta, Chuqik'iraw, Moray, Vitcos and many others. The surrounding area, located in the Watanay Valley, is strong in gold mining and agriculture, including corn, barley, quinoa, tea and coffee. Cusco's main stadium Estadio Garcilaso de la Vega was one of seven stadiums used when Peru hosted South America's continental soccer championship, the Copa América, in 2004. The stadium is home to one of the country's most successful soccer clubs, Cienciano. The city is served by Alejandro Velasco Astete International Airport. Architectural heritage Because of its antiquity and importance, the city center retains many buildings, plazas, streets and churches from colonial times, and even some pre-Columbian structures, which led to its declaration as a World Heritage Site by UNESCO in 1983. Among the main sights of the city are: Barrio de San Blas This neighborhood houses artisans, workshops and craft shops. It is one of the most picturesque sites in the city. Its streets are steep and narrow with old houses built by the Spanish over important Inca foundations. It has an attractive square and the oldest parish church in Cusco, built in 1563, which has a carved wooden pulpit considered the epitome of Colonial era woodwork in Cusco. The Quechua name of this neighborhood is Tuq'ukachi, which means the opening of the salt. Hatun Rumiyuq This street is the most visited by tourists. On the street Hatun Rumiyoq ("the one with the big stone") was the palace of Inca Roca, which was converted to the Archbishop's residence. Along this street that runs from