We took a single day trip outside of Lisbon during our recent trip that included visiting the UNESCO World Heritage site, Pena Palace. We definitely recommend adding a trip to Sintra on your itinerary when visiting Lisbon as it is well worth the time that it takes. We pre-purchased the tickets, which we would recommend, and visitors are only allowed to enter at the start of the hour that you are assigned for your ticket. Even though the number of visitors per hour are limited, it is extremely busy and you will find yourself in a line as you walk through the palace.
The palace was originally a monastery that was converted to a palace in the 19th century and the monks moved to the monastery that is located in the Belém neighborhood of Lisbon. One of the unique things about the palace are the multiple colors of the palace with the original chapel being red and then the new additions to the palace being bright yellow. The palace is a Romanticist castle and sits atop one of the high hills of the Sintra mountain with the town of Sintra sitting below. The castle can be seen from the distance, making for quite a stunning site as you approach from the parking area below.
Our guide took us in towards the end of the group entering during our allotted time in order to give more time to talk to us about the history of the castle and describe some of the interesting features. Considering the lines moving through the rooms, it actually worked out well to be near the rear of the line. Of the many things that we saw during the tour was a detailed stained-glass window in the chapel that has the king holding a miniature image of the cathedral and if you zoom in on the window of the chapel it actually has the stained-glass window in it. That type of detail is truly amazing and a testament to the workmanship of the artists that created the stained-glass window.
It takes a little over an hour to walk through the palace and enjoy the views from the balconies. Despite the long line and having to slowly follow the crowd through the palace rooms, it was definitely worth spending the time at Pena Palace. We would recommend visiting the palace in the morning and then heading into the town of Sintra for some lunch afterwards. A trip to Sintra is often combined with a visit to Cascais as well, which is a wonderful resort town on the coast of the ocean.