Ancient theatre at the Asclepieion of Epidaurus, UNESCO, Peloponnese, Greece

Tour groups in the Large (Grand) Theatre, Roman ruins of Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Amphitheatre in the ruins of Pompeii, a large Roman town destroyed in 79AD by a volcanic eruption from Mount Vesuvius, UNESCO World Heritage Site, near Naples, Campania, Italy, Europe

Amphitheatre in the ruins of Pompeii, a large Roman town destroyed in 79AD by a volcanic eruption from Mount Vesuvius, UNESCO World Heritage Site, near Naples, Campania, Italy, Europe

Theatre in the ruins of Pompeii, a large Roman town destroyed in 79AD by a volcanic eruption from Mount Vesuvius, UNESCO World Heritage Site, near Naples, Campania, Italy, Europe

Amphitheatre in the ruins of Pompeii, a large Roman town destroyed in 79AD by a volcanic eruption from Mount Vesuvius, UNESCO World Heritage Site, near Naples, Campania, Italy, Europe

Auditorium of the Cuvillies Theater, Munich, Bavaria, Germany, Europe

Female statue with raised arms, naked, gold-plated, Garden Theatre, Grosser Garten, Large Garden, Herrenhaeuser Gardens, Hanover, Lower Saxony, Germany, Europe

Arches in the Great Basilica in the archaeological ruins of Butrint or Butrinto National Park in Albania

Actors dressed in white climb out a large balloon, globe, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Cinemaxx Cinema on Potsdamer Platz Square, Berlin, Germany, Europe

Garden Theatre, view from the stage onto empty seat rows, Grosser Garten, Large Garden, Herrenhaeuser Gardens, Hanover, Lower Saxony, Germany, Europe

Staatstheater, National Theatre, locally known as Grosses Haus, Large House, Stuttgart, Baden-Wuerttemberg, Germany, Europe

Great Theater, Ephesus, Selcuk, Lycia, Turkey, Asia

Gera Theatre, Large House, Architect Heinrich Seeling, Gera, Thuringia, Germany, Europe

Close-up of a Christian cross inside the Roman Colosseum against a blue sky, erected by the Pope in 2000 to commemorate Christian Martyrs; Rome, Lazio, Italy

Close-up view of the iconic Colosseum against a blue sky; Rome, Lazio, Italy

Overview of the inside of the iconic Colosseum against a blue sky with crowds of tourists sightseeing; Rome, Lazio, Italy

Close-up view of the iconic Colosseum against a blue sky, showing a marble plaque above the East Entrance dedicated to Christian martyrs; Rome, Lazio, Italy