What constitute the chief sources for the construction of Roman empire

1.	What constitute the chief sources for the construction of Roman empire..?
Answer» Roman builders utilized naturally occurring materials, primarily stone, timber and\xa0marble. Manufactured materials consisted of brick and glass and composite materials consisted of\xa0concrete.\xa0The Colosseum, Rome – The most famous building of the Roman Empire. Renowned for its fascinating history, Rome is a city which is bursting with truly incredible, ancient structures, one of which is the magnificent\xa0Colosseum.\xa0It was the\xa0largest structure\xa0ever\xa0built\xa0by the ancient\xa0Romans. Also known as the the\xa0Roman\xa0Wall, Picts\' Wall or Vallum Hadriani in Latin, Hadrian\'s Wall was designated as a UNESCO World Heritage Site in 1987.

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