Industrial Complex - Roman Period e Early Middle Ages (2)
The Troia archaeological site is located on the Troia peninsula, in a sandbank separating the Sado estuary from the Atlantic Ocean, integrated into a dune landscape that suffered deep changes over time. Therefore, this area could have had the characteristics of an island during the Roman period. The identified Roman ruins in Troia match a large fish sauce complex as well as an urban settlement from the Roman period (1st to 6th century A.D), benefiting from the rich maritime resources of its area. The visible archaeological structures are composed of workshops with large tanks for the production of fish sauce (cetarias), residential areas ("Rua da Princesa"), hydraulic structures, thermal bathhouses (located next to the largest factory), with its several functional areas, multiple necropolises with distinctive ritual and architectural features and a Paleochristian basilica (a large building, of rectangular shape, with three arches that partition the inner spaces in aisles decorated with frescoes with vegetal and geometric motifs. The identified archaeological materials as well as the constructive sequence of the domestic and industrial structures, allowed to frame the occupation between the 1st and 6th centuries AD, registering a profound restructuring around the 3th century AD.


The archaeological site has a visiting tour, with information available on site (panels and leaflets). Throughout the year the Roman ruins have a thematic program, with different activities and target audiences.

Visit conditions

Entrance with admission ticket


Opening hours: From March to October 2019 - Tuesdays to Sundays 10.00 - 13.00 14.30 - 18.00.


    How to get there? Best practices

    Best practices

    Good practices when visiting archaeological sites

    To visit an archaeological site is to connect with our origins, to understand our path and evolution as a species integrated in the environment, and to respect and safeguard our heritage so that future generations can also visit and enjoy it.

    Walking the paths and enjoying the structures and archaeological pieces that survived over time, fosters the understanding of what is different, but also of what is common among different populations: basically, what identifies us as Homo Sapiens.

    More than just vestiges and ruins of the past, archaeological sites showcase our capacity for creative thought, adaptation, interconnection, comprehension and resilience. Without these traits we would not have been successful as cultural beings participating in an ongoing evolutionary process. These sites also allow to consider choices made in the past thus contributing for decisions in the present to be made with greater awareness and knowledge.

    Archaeological sites are unique and irreplaceable. These sites are fragile resources vulnerable to changes driven by human development. The information they keep, if destroyed, can never be recovered again.

    As such, the Directorate-General for Cultural Heritage (DGPC) invites all visitors to enjoy the beauty and authenticity of these sites, while helping to preserve them for future generations by adopting the following set of good practices:

    • Respect all signs; 
    • Do not try to access fenced areas; 
    • Do not climb, sit or walk on archaeological structures and remains; 
    • Respect areas where archaeological excavations are being carried out, not disturbing them; 
    • Do not collect materials or sediments;
    • Do not write or make graffiti on archaeological structures; 
    • Put the garbage in appropriate containers. If none exist, take the garbage with you until you find a suitable container; 
    • Leave the archaeological site as you found it; 
    • Do not drive bicycles or motor vehicles over archaeological sites; 
    • Respect and protect the plants and animals that live in the areas surrounding archaeological sites;
    • Report signs of vandalism or destruction to DGPC or Regional Directorates of Culture (DRC);
    • Share the visiting experience and the archaeological sites, as a way of raising awareness to their preservation and making them better known;
    • Do not buy archaeological materials and report to public security authorities, DGPC or DRC, if you suspect that archaeological materials may be for sale.

    Further information:

    AIA / ATTA (2013) – Guide to best practices for archaeological tourism. 

    Raposo, J. (2016) – Código de conduta para uma visita responsável a sítios arqueológicos. In Sítios arqueológicos portugueses revisitados: 500 arqueossítios ou conjuntos em condições de fruição pública responsável. Al-madan, 2ª série, p. 20 – 77. 

    DGPC contacts

    Phone: +351213614200 | Email:


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