Although renowned for its military prowess, Rome's real power stemmed from its unprecedented mastery of urban planning and engineering. This film chronicles Rome's spectacular structural history from the rise of Julius Caesar in 55 BC to the Empire's eventual collapse in c. 537 AD. Each of Rome's legendary rulers left their mark on the city - some stately, some sordid - and their collective ambition caused a surge of innovation and ingenuity that led to Rome's glorious ascendance. It examines the planning and construction of the city's greatest masterpieces, including the awe-inspiring Colosseum and its mysterious subterranean aqueducts, and piece together Rome's magnificent past through its architectural triumphs.