Segóbriga was originally a Celtiberian settlement that was later destroyed during the Sertorius Wars and occupied by the Romans. The Romans developed the city due to the valuable translucent gypsum stone mines, which boosted the economy and led to the construction of many monuments and public buildings. However, with the fall of the Roman Empire, Segóbriga began to decline and was permanently abandoned in the 5th century during the Muslim invasions. Archaeological remains that can still be seen today include the theatre, amphitheatre, forum, thermal baths, aqueduct, Visigoth basilica, necropolis, and various fortification structures.