Constantine commissioned buildings linked to the pagan past (Baths of Constantine) and others (Aula Palatina,Trier) looking to the Christian future. New architectural ideas abound. The "Temple of Minerva Medica" is decagonal and the Basilica Nova modeled on the frigidaria of Roman imperial baths. The Arch of Constantine commemorates Constantine's victory at the Milvian Bridge and serves as a compendium of Constantine's accomplishments matching those of “good” second-century Roman emperors.