Italy, Lazio, Rome, Colosseum, interior view of the Colosseum with people walking around.

Italy, Lazio, Rome, Colosseum, interior view of the Colosseum with people walking around.

Italy, Lazio, Rome, Colosseum, interior view of the Colosseum.

Italy, Lazio, Rome, Colosseum, interior view of the Colosseum.

Italy, Lazio, Rome, Colosseum, the Colosseum in warm light.

Italy, Lazio, Rome, Colosseum, arch detail in warm light.

Italy, Lazio, Rome, Colosseum, cross section view of the Colosseum in warm light.

Italy, Lazio, Rome, Colosseum, view of the Colosseum from the Palatine.

Italy, Lazio, Rome, Colosseum, cross section of the Colosseum with buildings of Monti area in distance.

Italy, Lazio, Rome, Colosseum, cross section of the Colosseum showing viewpoints and different levels.

Italy, Lazio, Rome, Colosseum, view of Colosseum interior showing arches & different levels with people at viewpoints.

Italy, Lazio, Rome, Colosseum, girl running past puddle with reflection of the Colosseum.