Reminiscent of a country churchyard, this famed cemetery was intended for the interment of non-Catholics. This is where you'll find the tomb of John Keats, who tragically died in Rome after succumbing to consumption at age 25 in 1821. The stone is famously inscribed with "Here lies one whose name was writ in water" (the poet said no dates or name should appear). Nearby is the place where Shelley's heart was buried, as well as the tombs of Goethe's son, Italian anarchist Antonio Gramsci, and America's famed beat poet Gregory Corso. It is about a 20-minute walk south from the Arch of Constantine along Via San Gregorio and Viale Aventino, but the easiest way to get here is to catch the Metro B line from Termini, which deposits you almost directly outside the cemetery.