Wikipedia
Miróbriga (Mirobriga Celticorum) is an ancient Roman town located near the village and civil parish of Santiago do Cacém, in the municipality of the same name in the south-west of Portugal. Archeology revealed a that the town occupied the site of an ancient Iron Age settlement that existed since the 9th century B.C.
With the Roman colonization a commercial area developed around the Forum. The baths, among the best preserved in Portugal, consist of two adjoining buildings, possibly for male and female use respectively. The residential areas are still little known. Relatively close to the baths, there is a bridge with a single, semicircular arch. The hippodrome, the only one whose entire ground plan is completely known in Portugal, is located further from the centre.