Final answer:
Roman audiences enjoyed plays in theaters and various spectacles in the Colosseum and circuses, which showcased the empire's grandeur and served to reinforce political power.
Step-by-step explanation:
Roman audiences enjoyed a diverse range of public entertainment in various types of structures. For theatrical productions including plays, they used Greek style theaters and smaller odeon buildings for musical performances. The famous Colosseum, known also as the Flavian Amphitheater, served as a massive venue for gladiatorial combats, animal fights, and other spectacles. Additionally, circuses such as the one in Lepcis Magna, Libya, were built for thrilling chariot racing events. These venues provided entertainment and were utilized by Romans to exhibit their architectural grandeur and to solidify their political power.