#1 Jerónimos Monastery Walk around the UNESCO World Heritage Site and enjoy the Manueline architectural style 4.3 (19,575 reviews)
#3 Castelo dos Mouros Sintra Explore ancient ruins and capture panoramic views at the mountaintop fortress in Sintra 4.6 (1,184 reviews)
#4 Lisbon Cathedral Sé de Lisboa At over 800 years old, Lisbon Cathedral (or Sé de Lisboa) Lisbon's oldest church. Built during the reign of King Afonso Henriques, Sé de Lisboa has seen many disasters (including earthquakes), restorations, and renovations to make it the magnificent structure you see today. 4.2 (162 reviews)
#5 Portuguese School of Equestrian Art The Escola Portuguesa de Arte Equestre (Portuguese School of Equestrian Art) is a Portuguese horse-riding institution dedicated to the preservation of the equestrian arts, in the Portuguese tradition. It is one of the "Big Four", the most prestigious classical riding academies in the world. The horses are of the Lusitano breed, bred in the Coudelaria de Alter do Chão, founded in 1748 by King D. João V. 4.3 (29 reviews)
#6 Convent of the Capuchos The Convent of the Friars Minor Capuchin is also known as Convent of the Capuchos. It is a historical convent consisting of small quarters and public spaces located in the civil parish of São Pedro de Penaferrim, in the municipality of Sintra. The convent is easy to reach from Lisbon, Portugal. 4.5 (22 reviews)
#7 National Pantheon The National Pantheon of Portugal is located near Alfama, in Lisbon, specifically in the Church of Santa Engracia. The original church that was located here was destroyed in 1681 due to a storm. Construction of the new church was started in 1682 and was not completed until 284 years later, giving rise to the popular expression "works of Santa Engracia" - referring to something that never ends. Since 1916 it has been the National Pantheon, housing the tombs of some of the country's most notable citizens. 4.3 (16,085 reviews)
#8 Tower of St. George's Castle Church The Igreja de Santa Cruz do Castelo de São Jorge, also known as Tower of St. George's Castle Church, is one of the most important places in Lisbon, Portugal. The temple had closed doors for over thirty years and hid many secrets, such as the statue of St. George, which is carried on a white horse in the oldest procession in Lisbon, since 1570. Since June 2018, with the opening to the public of the Church Tower as a viewpoint, you can now climb to the top and soak up amazing views over Lisbon and the Tagus River. Listen out for the echo of the 18th-century bells, which still ring today. 4.2 (184 reviews)
Park and Pena Palace in Sintra + Castle of the Moors Book once and enhance your experience with this convenient combination of 2 must sees
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Castle of the Moors + Park and Pena Palace in Sintra + Sintra City Audio Guide Book once and enhance your experience with this convenient combination of 3 must sees
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Castle of the Moors + Sintra: Hop-on Hop-off Bus to Castles Book once and enhance your experience with this convenient combination of 2 must sees
National Palace of Sintra + Sintra: Hop-on Hop-off Bus to Castles Book once and enhance your experience with this convenient combination of 2 must sees
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-5% Lisboa Card + Hop-on Hop-off Boat Lisbon Book once and enhance your experience with this convenient combination of 2 must sees
-5% Jerónimos Monastery + Yellow Bus Lisbon: 48-Hr Hop-on Hop-off Bus + River Cruise Book once and enhance your experience with this convenient combination of 2 must sees