There is something unnerving yet compelling about exploring crypts and vaults. If this sounds interesting to you, stop by Augustus Mausoleum.
If you're spending a while in Rome City Centre, Augustus' Mausoleum is a fine place to kick off your sightseeing. This tomb site is one of numerous attractions that'll keep you on the go here. St. Peter's Basilica, Roman Forum, and Piazza Navona are also ready to be explored close by.