Solid Structure and Hollow Structure

Dorchester, England (c. 70 CE) © Jim Champion, 2006, Wikimedia commons Amphitheater with wooden frame built against an embankment	Alba Fucens, Italy (between 14 and 54 CE) © Nicolas Monteix Amphitheater with a solid structure and cavea supported by continuous rubble foundations	Merida, Spain (8 BCE) © Octopus, 2014, Wikimedia commons Amphitheater with a solid structure and cavea supported by compartmentalized rubble	Saintes, France (First century CE) © City of Saintes Amphitheater with a solid structure and cavea supported by juxtaposed "chambers"	The Colosseum, Rome (71 - 90 CE) © Arthur Palumbo 25, 2015, Wikimedia commons Amphitheater with a hollow structure
Type 1 Type 2 Type 3 Type 4 Type 5