Yes, the Jeronimos Monastery (Mosteiro dos Jerónimos) is included as a "free entry" attraction with the Lisboa Card in 2026. As a UNESCO World Heritage site and one of the most visited landmarks in Lisbon, this inclusion provides significant value, as the standard adult ticket price is approximately €12. By simply presenting your valid Lisboa Card at the entrance, you bypass the need to purchase a ticket at the kiosk. However, for 2026 visitors, a high-value "pro-tip" is to be aware that the card does not grant you "fast-track" access to the physical security line; the monastery often has long queues, so arriving early (before 10:00 AM) is still recommended even with the card. The card also covers free unlimited travel on the Lisbon Metro, buses, and the famous Tram 15 that takes you from the city center directly to the Belém district where the monastery is located, making the Lisboa Card the most cost-effective "all-in-one" tool for a Belém day trip in 2026.