Classified as a national monument, nobody is quite sure what this unusual 12th century building was for! Built in a Romanesque style the building forms an irregular pentagon with a subterranean vaulted cistern https://www.travel-in-portugal.com/attractions/domus-municipalis.htm

The strangest sight of Faro, which is hidden away from the main tourist route, is the Capela Dos Ossos, the bone chapel. The bones of the overcrowded cemeteries were stored in the small chapel that is located within the Carmo church complex. These bones were incorporated into the designs of the chapel, with skulls lining the walls – very strange and creepy. http://www.algarve-tourist.com/Faro-portugal-guide.html

The pink Estoi Palace is the finest example of Rococo architecture found within the Algarve, while the carefully maintained grounds contain beautiful Azulejos tiles. http://www.algarve-tourist.com/Faro-portugal-guide.html

The eastern edge of the Praia de Faro, easily accessible from Faro but far enough away from the summer time crowds. http://www.algarve-tourist.com/Faro/faro-beaches.html

The bone chapel is the most ghoulish sight of Portugal and thus one of the most memorable monuments of Evora. Inside the small chapel, the walls are lined with bones of the long-deceased, exhumed from the city's graves as the city expanded to allow further burials. http://www.evora-portugal.com/Guides/Evora-sights-attractions-sightseeing-things-to-see.html

Aveiro Museum is one of the centrepieces of this picturesque historical city in west-central Portugal. The museum encompasses the buildings of the Jesus Monastery, with its church, cloisters and other convent buildings, and was established as long ago as 1911. http://www.ezportugal.com/aveiro-portugal/attractions-aveiro-portugal/museum-aveiro-portugal

The Military Museum of Porto (Museu Militar do Porto) is housed in a 19th century building in the Bonfim district of Porto, in what was formerly the headquarters of the feared secret police - PIDE (Polícia Internacional e de Defesa do Estado) during the time of Salazar and the Estado Novo (New State). https://www.portugalvisitor.com/portugal-museums/porto-museumilitar

The Jerónimos Monastery was proclaimed a UNESCO World Heritage Site in 1983. This notable 16th century work of architecture became part of Portuguese identity and culture. https://www.visitlisboa.com/see-do/sightseeing-activities/museums-monuments/mosteiro-dos-jeronimos