Trajan’s Market, commissioned by Emperor Trajan and designed by Greek architect Apollodorus of Damascus, was constructed between AD 107 and 113 to complete the Forum of Trajan. The market was extensively excavated between the world wars, and today, although Trajan’s Forum is a hodgepodge of fallen columns and plinths, the market is still recognizable. Explore its passageways and main street as part of a small-group ancient Rome tour on foot or by Segway. Also here is the Museum of the Imperial Forums (Museo dei Fori Imperiali), which contains fragments discovered while excavating the archaeological complex, models of ancient temples and buildings, a huge sculpted head of Emperor Constantine, and temporary exhibitions focused on the history of the Roman Empire.