As of a major policy shift in 2024–2026, free museum access in Lisbon is no longer restricted to just "Sunday mornings." Instead, Portuguese residents and residents with a tax number (NIF) can visit 37 national museums and monuments for free on any 52 days of the year. For international tourists, however, "free" days are becoming rarer. Many major sites, like the National Tile Museum or the Ancient Art Museum, still offer free entry on the first Sunday of every month for everyone, but these days are incredibly crowded. To combat "overtourism" in 2026, several museums have shifted to "Pay What You Want" hours on Friday evenings. A much better value for tourists is the Lisboa Card, which provides free entry to 39 museums (including the Jerónimos Monastery and Belém Tower) and unlimited public transport for 24, 48, or 72 hours. If you are a student or a senior (65+), you can almost always get a 50% discount any day of the week by showing your ID, which is often a better strategy than braving the massive queues on the rare "free" Sundays.