The Centum Cellas Tower in Colmeal da Torre is perhaps the most enigmatic building in the municipality. Its purpose has been the subject of different interpretations over the years: temple, prison, praetorium of a Roman encampment, an inn, a Roman villa... According to studies after the excavations in the 1990s, it was thought to be a 1st century Roman villa belonging to Lucius Caecilius and his descendent who were farmers and tin miners. The tower had two storeys. There area also traces of other buildings.