| Introductory courses are delivered in the form of lectures and are generally held in amphitheatres with 600-800 places. |
| The semi-circular design of Greek and Roman amphitheatres clearly indicates a fundamental understanding of the spherical propagation of sound. |
| We saw ancient Greek temples, Roman amphitheatres and walled medieval cities. |
| We Europeans lost our ancient theatre forms even though we have Greek and Roman texts and impressive amphitheatres. |
| Circuses have come a long way, since they gained popularity during the ancient Roman Empire, when amphitheatres were the only source of entertainment to citizens. |
| Stepped seating rose like amphitheatres from the sun decks around the pool, so that it became an arena in which the swimmers took centre stage. |
