Roofing an incredible area implies conveying overwhelming materials crosswise over spaces difficult to traverse with the Greeks' basic post-and-lintel framework. In the arch, and the vault that grew out of it, the Romans had a method for pushing the huge Colosseum dividers story above story, of covering a lavish showering lobby that could suit three thousand people, and of making the lofty type of the
Roofing an incredible area implies conveying overwhelming materials crosswise over spaces difficult to traverse with the Greeks' basic post-and-lintel framework. In the arch, and the vault that grew out of it, the Romans had a method for pushing the huge Colosseum dividers story above story, of covering a lavish showering lobby that could suit three thousand people, and of making the lofty type of the