From drunken student toga parties to the 12 million annual visitors to the Colosseum – the might of ancient Rome has echoed down the centuries in all sorts of unexpected ways. Roman buildings, technologies, words and ideas still permeate our world, while gold-helmeted gladiators, purple-robed emperors and arrow-straight Roman roads remain almost as iconic as they were in the 1st century AD. Rome's cultural legacy is so large that its language, Latin, is still sometimes taught in schools, even though it's not been spoken for well over a millennium.

Click through this gallery to see how much you really know about ancient Rome – and fill in the gaps...