Around 2,500 years ago, the city of Rome was at the centre of a huge empire ... Meet Caligula who ruled from AD37 to 41 and was famous for being crazy and cruel. Rumoured to have made his horse ...

It leads participants through the labyrinthine alleys and byways of Rome, each uncovering layers of history and tales of yore that are often overshadowed by the city's more famous attractions.