What made Rome great?

Evan Andrews of the History Channel online discusses the innovations that made Rome great in his article 10 Innovations That Built Ancient Rome.

The innovations include aspects of architecture, medicine, writing, and government.
    
From the article:

The Western Roman Empire may have fallen more than 1,500 years ago, but its rich legacy of innovation and invention can still be seen today. The Romans were prodigious builders and expert civil engineers, and their thriving civilization produced advances in technology, culture and architecture that remained unequaled for centuries. From aqueducts to newspapers, find out more about 10 innovations that built ancient Rome.