The ruins of the Roman town of Dougga, a UNESCO World Heritage site, valley of Oued Khalled, northwest Tunisia

The Palatine Gate (Porta Palatina), a Roman-era city gate, the Porta Principalis Dextra (Right-Side Main Gate) of the ancient town, giving entry through the Julia Augusta Taurinorum walls from the North side, Turin, Piedmont, Italy, Europe

The Palatine Gate (Porta Palatina), a Roman-era city gate, the Porta Principalis Dextra (Right-Side Main Gate) of the ancient town, giving entry through the Julia Augusta Taurinorum walls from the North side, Turin, Piedmont, Italy, Europe

Statue of Julius Caesar located at the Palatine Gate, a Roman-era city gate, the Porta Principalis Dextra of the ancient town giving entry through the Julia Augusta Taurinorum walls from the North side, Turin, Piedmont, Italy, Europe

Statue of Julius Caesar located at the Palatine Gate, a Roman-era city gate, the Porta Principalis Dextra of the ancient town giving entry through the Julia Augusta Taurinorum walls from the North side, Turin, Piedmont, Italy, Europe

Ruins of the Roman-era Imperial Palace of Galerius on Navarinou square in Thessaloniki, Greece, Europe

Triple arched gateway of ancient Patara, Triumphal arch of Metius Modestus, lycian coast, Mediterranean Sea, Turkey

Amphitheatre, Augustan era 63 BC - 14 AD, Lucera, Puglia, Apulia, Italy, Europe

Amphitheatre, Augustan era 63 BC - 14 AD, Lucera, Puglia, Apulia, Italy, Europe

Amphitheatre, Augustan era 63 BC - 14 AD, Lucera, Puglia, Apulia, Italy, Europe

Amphitheatre, Augustan era 63 BC - 14 AD, Lucera, Puglia, Apulia, Italy, Europe

Hera temple also called Nettuno temple or Poseidon temple, Paestum archaeological area, Campania, Italy

Hera temple also called Nettuno temple or Poseidon temple, Paestum archaeological area, Campania, Italy

Hera temple also called Nettuno temple or Poseidon temple, Paestum archaeological area, Campania, Italy

Hera temple also called Nettuno temple or Poseidon temple, Paestum archaeological area, Campania, Italy