The Forum and Vesuvius volcano, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Forum at sunrise, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Forum at sunrise, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Septimius Severus (Septimus Severus) Forum, Leptis Magna, UNESCO World Heritage Site, Tripolitania, Libya, North Africa, Africa

River promenade and Spree terraces at the new Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

Roman Forum elevated panoramic view with ancient ruins, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Temple of Saturn, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

The Forum, Rome, Lazio, Italy, Europe

View of Roman Forum (Foro Romano), Temple of Saturn and Arch of Septimius Severus, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Tourist admiring the Arco di Tito triumphal arch, Imperial Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Portal in the Passage inner courtyard, The Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

Roman Forum seen from Palatine Hill, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Detail from the Column of Trajan, Trajan Forum (Foro Traiano), UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Trajan's Markets, Roman ruins, Forum area, Historic Centre (Centro Storico), Rome, UNESCO World Heritage Site, Lazio, Italy, Europe

Roman Forum ruins, elevated view from Campidoglio, Historic Centre, Rome, UNESCO World Heritage Site, Lazio, Italy, Europe

Roman Forum (Foro Romano) at sunrise, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Forum at sunrise, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Rain Nymphaeum, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Temple of Castor and Pollux, Palatine Hill behind, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Roman road, Temple of Castor and Pollux, Palatine Hill behind, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Panoramic view of surviving structures and the Arch of Septimius Severus in the Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Roman inscription, Forum Square, Old Town, Pula, Croatia, Europe

Oval Plaza (Forum) and Cardo Maximus colonnaded street, Roman city, Jerash, Jordan, Middle East

Roman Forum, seen from Palatine Hill, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Ancient Roman Oval Forum, Jerash, Decapolis, Jordan

Trajan's Forum, Rome, Unesco World Heritage Site, Latium, Italy, Europe

Ancient Rome city skyline with the Trajan Forum and market, Rome, Lazio, Italy, Europe

Roman Forum (Foro Romano), Temple of Saturn and Arch of Septimius Severus, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Trajan's Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Roman road, Temple of Castor and Pollux, Palatine Hill behind, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Forum of Nerva, Roman Forum (Foro Romano), UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

View to Forum and Capitol at the Roman ruins of Sbeitla, Tunisia, North Africa, Africa

Trajan's Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Humboldt Lab, The Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

The Berlin Palace (Humboldt Forum) along the Spree River and the Berliner Dom, Unter den Linden, Berlin, Germany, Europe

Column of Phocas, Arch of Septimius Severus, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

View from Hirzel Villa to Forum Gold and Silver, Rems River, Schwabisch Gmund, Remstal Valley, Baden-Wurttemberg, Germany, Europe

Trajan's Forum, Rome, Unesco World Heritage Site, Latium, Italy, Europe

The Forum of Augustus, Temple of Mars Ultor, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Forum Marinum, maritime museum, Turku, Finland, Europe

Forum and markets of Trajan, Rome, Lazio, Italy, Europe

Great Hall seen from the Upper Gallery, The Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

Roman road, Temple of Castor and Pollux, Palatine Hill behind, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Trajan's Forum, Rome, Unesco World Heritage Site, Latium, Italy, Europe

Columns tetrarchiche (honorary columns), Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Temple of Antoninus and Faustina, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Tower St. Stosija, Forum area, Zadar, Dalmatia, Croatia, Europe

Temple of Antonius and Faustina, Roman Forum, Rome, Lazio, Italy, Europe

Basilica Julia, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Ruins of Trajan's market, Trajan Forum (Foro Traiano), UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Roman Forum ruins, elevated view from Campidoglio, Historic Centre, Rome, UNESCO World Heritage Site, Lazio, Italy, Europe

Trajan's Markets, Roman ruins, Forum area, Historic Centre (Centro Storico), Rome, UNESCO World Heritage Site, Lazio, Italy

The Forum of Augustus, Temple of Mars Ultor, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

The Forum of Augustus, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Settimio Severo Arch and Colonna di Foca, Imperial Forum (Fori Imperiali), UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Roman Forum, Thessaloniki, Central Macedonia, Greece, Europe

River promenade and Spree terraces at the new Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

Tower of the Winds (Horologion of Andronikos Kyrrhestes) at sunset, Roman Forum, Athens, Attica, Greece, Europe

Temple of Augustus, 2 AD, Forum Square, Old Town, Pula, Croatia, Europe

Temple of Saturnus on left, Column of Phocas, Arch of Septimius Severus, Tabularium, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

The Oval Forum and Cardo Maximus in the ancient city of Jerash, believed to be founded in 331 BC by Alexander the Great, Jerash, Jordan, Middle East

Remains of Basilica Aemilia, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Basilica of Maxentius (Constantine), Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

View of Berliner Dom, Berliner Fernsehturm and Humboldt Forum reflecting in River Spree at dusk, Berlin, Germany, Europe

Roman Forum with the Temple of Saturn, Rome, UNESCO World Heritage Site, Lazio, Italy, Europe

Remains of Forum of Augustus with the Temple of Mars Ultor, Rome, Unesco World Heritage Site, Latium, Italy, Europe

Roman Forum, Palatine Hill on the right, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Columns at Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Columns tetrarchiche (honorary columns), Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Ruins and columns, Imperial Forum (Fori Imperiali), UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Gate of Athena Archegetis, Roman Forum, Athens, Attica, Greece, Europe

Forum of Augustus, Rome, Lazio, Italy, Europe

City Hall Building (Communal Palace), dating from 1296, Forum Square, Old Town, Pula, Croatia, Europe

The Roman Forum and Colosseum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Temple of Harmonious Gods, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Statue of Roman soldier in front of Trajan's Forum, Via Dei Fori Imperiali, Rome, Lazio, Italy, Europe

Roman Forum (Foro Romano), Temple of Saturn and Arch of Septimius Severus, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

City Hall Building (Communal Palace), dating from 1296, Temple of Augustus on the left, from 2 AD, Forum Square, Old Town, Pula, Croatia, Europe

Temple of Saturn, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europepe

Statues at House of the Vestal Virgins, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Temple of Castor and Pollux, Arch of Septimius Severus, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Column of Phocas, Arch of Septimius Severus, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Trajan's Forum, Rome, Unesco World Heritage Site, Latium, Italy, Europe

Jerash forum in the early morning with a long colonnade projecting shadows, Jerash, Jordan, Middle East

Forum thermal baths, Ostia Antica, Lazio, Italy, Europe

Temple of Vespasianus, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

House of the Vestal Virgins, Temple of Castor and Pollux behind, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Statue at House of the Vestal Virgins, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Temple of Antoninus and Faustina, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Trajan's Column and Forum, Forum area, Rome, Lazio, Italy, Europe

Roman Forum (Foro Romano) at sunrise, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Trajan's Markets, Torre delle Milizie Turm, Trajan's Forum (Foro di Trajano), UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Tower of the Winds (Horologion of Andronikos Kyrrhestes) at sunset, Roman Forum, Athens, Attica, Greece, Europe

Dome of San Giuseppe dei Falegnami church, Imperial Forum (Fori Imperiali), Rome, Lazio, Italy

The Roman Forum (The Foro Romano) and Colosseum, Rome, Lazio, Italy, Europe

Trajan's Column and Forum, Dome of St. Maria di Loreto, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Temple of Saturn, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europee

Columns at Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Roman Forum (Foro Romano), Colosseum behind, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Ruins of Imperial Forum (Fori Imperiali) and Colosseum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe