The city’s largest cemetery dates to the Napoleonic occupation of Rome between 1804 and 1814, when an edict ordered that the city’s dead must be buried outside the city walls. Between the 1830s and the 1980s virtually all Catholics who died in Rome (with the exception of popes, cardinals and royalty) were buried here. If you're in the area it's worth a look for its grand tombs. On 2 November (All Souls’ Day), thousands of Romans flock to the cemetery to leave flowers on the tombs of loved ones.