Doesn't have a whole lot of material (most of it seems to be illustrations and reconstructions rather than primary sources - understandable I guess given the paucity of material culture) yet given the scarcity of materials on the topic I thought it was worth saving. A fascinating topic for students.
A secondary source which might be good for initial student research or for a teacher reading up on something outside their main areas of expertise (which as we all know is not uncommon...).
Visit historic and architecturally significant landmarks in Italy. You can now explore inside the Colosseum, see ancient wellness centers, and walk along the Appian Way.