Largo di Torre Argentina
Description
The largest remaining ruins from the Republican period in Rome, the site is also believed to be where Julius Caesar was assassinated. Today it's probably more famous for the large number of cats living amongst the ruins. Consequently you can't go down into the ruins, but you can view them from street level
Charge
Free
Getting There
Latitude: 41.89538; Longitude: 12.476863
What3Words: whoever.fillers.piper
Disclaimer: Details correct at time of writing (12/11/2017), and on time of last update (19/11/2017) but may no longer be accurate, particularly if some time has passed.