Radial consequent streams cut deep canyons into the flanks of the extinct shield volcano, and these canyons are opened out into deep, steep-walled amphitheaters. |
The Garden features the Green Theater, one of the largest open amphitheaters in Europe, able to hold up to 15 thousand people. |
As a result, the Romans used arches for things such as aqueducts, amphitheaters, bridges, and domed temples. |
The largest of these amphitheaters was the Colosseum, the ruins of which still exist. |