ROME was not built in a day and the 'most accurate' model of Ancient Rome is testament to this as it took archaeologist Italo Gismondi 35 years to build.
The Plastico di Roma imperiale (model of imperial Rome) was actually commissioned by Mussolini in 1933 and is so realistic that a few shots of it were used in the film Gladiator.
The model can be viewed today in the Museum of Roman Civilisation in Rome, Italy.
It is so useful because it helps a lot of academics visualise Rome to aid their studies and gives a lot more context to famous structures, like the Colosseum, which we are used to seeing as stand alone buildings.
Roman cities were laid out so efficiently that it can also teach us more and inspire us about infrastructure in modern society.
For example, the city of Bath in England has a Roman layout and Roman baths and similarities can be seen between it and the model.