Panteão Nacional (National Pantheon)

The Panteão Nacional is the closest major monument to the cruise terminal: about 600 m and 10 minutes on foot, uphill into the Santa Clara quarter. Its white dome is visible from the quay, so you can steer by it. That makes it a good first or last stop on a port day, or a complete outing if you only have two hours ashore. It opens Tuesday to Sunday at 10:00 and is closed on Mondays, so check the day before you plan around it. The adult ticket is €10 (2026), sold at the door or online through the Museus e Monumentos de Portugal ticket office; the Lisboa Card covers it. The visit takes 45 minutes to an hour. If time is short, give ten minutes to the nave and the tombs at floor level, including those of the fado singer Amália Rodrigues and the footballer Eusébio, then go up to the open-air terrace around the base of the dome. From there you look down over the cruise terminal and the river, across Alfama to the castle, and west towards the 25 de Abril Bridge. The terrace is the main reason to come. On Tuesdays and Saturdays the Feira da Ladra flea market fills Campo de Santa Clara outside the door. It slows the approach and crowds the square, but it is also a reason to come on those days; keep valuables zipped. The 10:00 opening is the simplest time to avoid queues and groups. Do not spend long on the cenotaphs to Vasco da Gama, Camões and other navigators if you are short of time: they are memorials, not graves. The building was a church left unfinished for nearly three centuries and only completed as the National Pantheon in 1966, which is why the interior feels more like a state monument than a place of worship.