The huge cylinder of the ancient ‘Casal Rotondo’ on the Via Appia Antica (milestone 6) is one of the better preserved monumental tombs along the storied route out of Rome. Lots of sculptural details still survive. But the most fascinating thing is that someone, in the middle ages, thought they’d have a great view if they build their house on top of it. Plus, it added security. See those trees on top? They’re the garden of the stone house that’s still up there. It’s not known who the tomb was originally for, which is surprising since its one of the largest along the Via Appia, with the cylinder’s diameter measuring 35 meters.