Sintra is a multifaceted cultural icon of the country of Portugal, located in the Lisbon region, consisting of the two major cities Queluz and Agualva-Cacém. The area is recognised for its remaining buildings boasting exquisite Roman architecture, natural attractions provided by the inclusive Sintra Mountains, and a legendary literary heritage. The presence of well-preserved castles and mediaeval estates has transformed Sintra into a booming tourist allure not far outside the capital city.

Sintra is recognised as a UNESCO World Heritage Site as a result of its containment of multiple architectural masterpieces represented by the National Palace, Moorish Castle, and the Pena Palace. A popular point of interest is the ruins of the Castelo dos Mouros which overlook the city of Sintra below. Hiking, trail running, and photography are common activities throughout the Sintra Mountains and the Sintra Museum of Modern Art as well as the Natural History Museum round off the extensive variety of location attractions.

The area of Sintra is serviced by a train that routes from the Rossio train station in central Lisbon. Tourist buses are the most popular way of getting around as parking spaces for personal vehicles are limited.

The famous Pena National Palace served as a seasonal home to the royalty of Portugal during the 18th and 19th centuries. Measures to preserve the Pena National Palace as well as its many other historical landmarks were enacted after the establishment of the Portuguese Republic in 1910 which subsequently promoted economic development and institutions of cultural heritage.