18 February 2026 The Future is the Product of the Past

A Ribat Mosque shares space with the Roman sanctuary dedicated to Sun and Ocean was discovered in Portugal

The ruins of a second Islamic ‘ribat’ mosque dating back to the 11th and 12th centuries have been discovered at the Alto da Vigia archaeological site next to the town of Praia das Maçãs, located on one of the most beautiful beaches of Portugal’s Sintra coastline.

A ribāṭ is an Arabic termThe word ribat in its abstract refers to the voluntary defense of Islam, which is why ribats were originally used to house those who fought to defend Islam.

In a statement, the Sintra municipality revealed that “research work continues at the Alto da Vigia archaeological site, next to Praia das Maçãs, having now identified and excavated the ruins of a second Islamic ‘ribat’ mosque dating from the 11th and 12th centuries”.

“This place would be both a place of prayer and surveillance of the coast against the risk of attack, particularly by Christian forces”, the statement reads.

According to information provided by Lusa News Agency, “this find reinforces the importance of this sacred space for Islam, documenting a type of architectural reality for which only two other examples are known in the entire Iberian Peninsula: one in Aljezur and another near Alicante, in Spain”.



📣 Our WhatsApp channel is now LIVE! Stay up-to-date with the latest news and updates, just click here to follow us on WhatsApp and never miss a thing!!



Alto da Vigia - Roman sanctuary dedicated to the Son, Moon, and Ocean. Detail of Roman altar reused to build the Medieval Islamic mosque. Photo: © CMS | MASMO
Alto da Vigia – Roman sanctuary dedicated to the Son, Moon, and Ocean. Detail of Roman altar reused to build the Medieval Islamic mosque. Photo: © CMS | MASMO

A first mosque had already been identified at the site, also with its characteristic niche facing the holy city of Mecca (mihrab), as well as a building without this oratory.

The city council information also highlights “the presence of a cemetery with burials carried out according to the dictates of the Islamic faith, in addition to around a dozen cavities excavated in the rock intended for storing food (silos)”.

“By comparing these sites leads us to believe that the remains now uncovered in Sintra will include numerous mosques in a large area yet to be excavated”, highlights the municipal information.

The experts from the municipal archaeology services emphasize that, in the case of Alto da Vigia, the unique particularity of this ‘ribat’ is that it shares space with the Roman sanctuary dedicated to the Sun and the Ocean, from whose ruins “he reused multiple epigraphic and architectural elements such as construction material”.

Alto da Vigia - Roman sanctuary dedicated to the Sun, Moon, and Ocean. Detail of Roman stones reused to build the Medieval Islamic mosque. Photo: © CMS | MASMO
Alto da Vigia – Roman sanctuary dedicated to the Sun, Moon, and Ocean. Detail of Roman stones reused to build the Medieval Islamic mosque. Photo: © CMS | MASMO

“This new discovery not only enriches our understanding of Sintra but also strengthens our commitment to the preservation and enhancement of the municipality’s cultural heritage”, said the mayor of Sintra, Basílio Horta.

The Archaeological Museum of So Miguel de Odrinhas (MASMO) services team worked with volunteers and students from archaeology courses at the University of Lisbon’s Faculty of Arts and the Universidade Nova de Lisbon’s Faculty of Social and Human Sciences.

Related Articles

Hebrew University Archaeologists have Unveiled 7,000-year-old Seal İmpressions

10 June 2021

10 June 2021

Israeli archaeologists unveiled a 7,000-year-old clay seal impression used for commerce and protection of property, the Hebrew University of Jerusalem...

12,000-Year-Old Rock Carvings Discovered Beneath Waters of Atatürk Dam in Türkiye

22 October 2025

22 October 2025

Archaeologists and museum officials in Adıyaman, southeastern Türkiye, have captured underwater images of rock carvings estimated to be 12,000 years...

Massive Medieval Cog Ship Discovered off Denmark: The ‘Emma Maersk’ of the Middle Ages

29 December 2025

29 December 2025

A remarkable archaeological discovery has been made off the coast of Copenhagen: a 600-year-old shipwreck, now identified as the largest...

The New Study Says the Iranian Plateau in the Pleistocene is a Bridge Between East and West

19 May 2021

19 May 2021

Iranian researchers say the Iranian plateau served as a migration route between East and West during the Pleistocene period, which...

Archaeologists Find Rare Ancient African Figurines in Christian Graves in Negev Desert

2 June 2025

2 June 2025

Researchers have uncovered five miniature figurines, including intricately carved African heads, in 1,500-year-old graves in Israel’s Negev Desert. These rare...

Archaeologists Uncover ‘Holy Water Effect’ Children’s Graves Beneath a 12th-Century Chapel

15 October 2025

15 October 2025

Archaeologists in Saxony-Anhalt in Germany have uncovered around 1,000 medieval artifacts and more than 50 graves, including those of children...

Archaeologists Discover Complete 13th-Century Rare Benahoarit Vase in Tijarafe Funerary Cave on La Palma

30 August 2025

30 August 2025

A remarkable archaeological discovery in Tijarafe, a municipality on the northwestern coast of La Palma in Spain’s Canary Islands, has...

The identities of the occupants of the unspoiled 4th-century BCE Royal Tombs at Vergina in northern Greece have been identified

26 January 2024

26 January 2024

The identities of the occupants of the unspoiled 4th-century BCE Royal Tombs at Vergina in northern Greece have been identified....

Academics Uncover Ancient Roman Physicians Galen’s Pharmacy Legacy in İzmir

27 February 2024

27 February 2024

As a part of research on medicinal plants in Bergama, İzmir’s historic district where Galen (129 AD -200 AD) once...

Archaeologists Uncover Double-Headed Ritual Hearths in Anatolia’s Tadım Mound

17 August 2025

17 August 2025

Governor Numan Hatipoğlu announced on his official X account that archaeologists at Tadım Castle and Mound (Tadım Höyük) have uncovered...

New fortification walls discovered in the ancient city of Pergamon

14 February 2022

14 February 2022

2,500-year-old fortification walls were found in the Ancient City of Pergamon (Bergama), which was included in the World Heritage List...

Ancient Graffiti Unearthed at Artezian in Crimea: A Hidden Message on Temple Plaster

6 October 2025

6 October 2025

Archaeologists exploring the ancient settlement of Artezian in Crimea have uncovered a tantalizing piece of antiquity: a fragment of graffiti...

The 890-million-year-old sponge fossil may be the oldest animal yet discovered

1 August 2021

1 August 2021

890-million-year-old fossil sponges found in the “Little Dal” limestones of northwest Canada may be the oldest animal ever found. According...

An imitation Arabic dinar discovered in Norfolk may have been made by Vikings

6 April 2023

6 April 2023

A gold disc struck with a fake inscription imitating an Arabic dinar found near Morston, Norfolk in April 2021 may...

New Discovery Challenges Origins of Iconic Sutton Hoo Helmet: It Could Radically Alter Our Understanding of 7th Century Northern European Power Dynamics

28 March 2025

28 March 2025

A recent find on the Danish island of Tåsinge has sparked a significant reevaluation of the origins of the renowned...