Neptune had only one temple in Rome. It stood near the Circus Flaminius, the Roman racetrack in the southern part of the Campus Martius, and dates back to at least 206 BC. The temple was restored out by Gnaeus Domitius Ahenobarbus c. 40 BC, an event depicted on a coin struck by the consul. Within the temple was a sculpture of a marine group by Scopas Minor. The Basilica Neptuni was later built on the Campus Martius, and was dedicated by Agrippa in honor of the naval victory of Actium. This basilica supplanted the older temple, which had replaced an ancient altar.