Sintra (, Portuguese: [ˈsĩtɾɐ] (listen)) is a town and municipality in the Greater Lisbon region of Portugal, located on the Portuguese Riviera. The population of the municipality in 2011 was 377,835, in an area of 319.23 square kilometres (123.26 sq mi). Sintra is a major tourist destination in Portugal, famed for its picturesqueness and for its numerous historic palaces and castles. Sintra is also a major luxury dining and tourism destination within the Portuguese Riviera, as well as one of the wealthiest municipalities in the country, and is known for the numerous notable events hosted in Sintra, such as Bilderberg Meetings and the Open de Portugal. The historic center of the Vila de Sintra is famous for its 19th-century Romanticist architecture, historic estates & villas, gardens, and numerous royal palaces & castles, which resulted in the classification of the town and its historic passage as a UNESCO World Heritage Site. Sintra is similarly known for its numerous gardens and nature parks, including the Sintra-Cascais Nature Park and the Sintra Mountains. Sintra's most iconic landmarks include the mediaeval Castle of the Moors, the romanticist Pena National Palace and the Portuguese Renaissance Sintra National Palace. Sintra is consistently ranked as one of the wealthiest and most expensive municipalities in both Portugal and the Iberian Peninsula as a whole. Sintra is one of Portugal's most expensive and sought after real estate markets, famed for its numerous historic villas, luxury estates, and Michelin star restaurants, and is home to one of the largest foreign expat communities along the Portuguese Riviera. Sintra is similarly known for its high standards of living, consistently ranking as one of the best places to live in Portugal.