During the Roman Empire colossal engineering works were built. Some have survived to this day preserving a large part of their structure, such as the aqueducts of Nimes or Segovia or the theater of Mérida. The new documentary series of La 2, Roman Engineering, reviews in six chapters how the prodigious works that were erected during the Roman conquest of the Mediterranean were built. The theater of Cartagena or the magnificent monuments of Rome allow us to understand the challenges that engineers faced 2,000 years ago.