Aquincum Mithraeum of Victorinus

Aquincum Mithraeum of Victorinus is an ancient underground temple dedicated to the god Mithras, located in Budapest, Hungary. Aquincum was a Roman settlement that served as the capital of the province of Pannonia Inferior in the Roman Empire, and the Mithraeum was built in the 2nd century CE during the reign of Emperor Hadrian.

The temple was discovered in the 19th century during the construction of a nearby railway line and was excavated and restored in the 20th century. The Mithraeum is located underground, and visitors can descend a set of stairs to explore the temple and its features.

The Mithraeum is relatively small, measuring only about 10 by 8 meters, and it consists of a central nave with two side aisles. The temple's main feature is the altar, which is located at the far end of the nave and depicts Mithras slaying a bull, a common motif in Mithraic art. The walls of the temple are decorated with frescoes and inscriptions that depict scenes from the Mithraic mythology.