A thorough visit to the National Palace of Sintra (Palácio Nacional de Sintra), famous for its iconic twin conical chimneys, typically takes 1.5 to 2 hours. This timeframe allows you to walk through the various ceremonial rooms, such as the Swan Room and the Magpie Room, and appreciate the extensive collection of "Azulejos" (historic Portuguese tiles) which are among the most important in the world. The palace is located in the heart of the "Vila" (the historic town center), making it very accessible. If you also want to explore the surrounding gardens or stop at the famous Piriquita bakery nearby for a travesseiro pastry, you should budget at least 3 hours for the immediate area. Because it is less "hilly" than the Pena Palace or the Moorish Castle, it is often a good "first stop" for a Sintra day trip. In 2026, it is highly recommended to book a timed-entry ticket in advance to avoid the long queues that form during the peak summer months and mid-day tourist "rush hours" between 11:00 AM and 3:00 PM.