The Mausoleum of Augustus is a large tomb located in Rome, Italy, built in 28 BC for the first Roman emperor, Augustus. This circular structure, made of concrete and brick, was originally adorned with marble and surrounded by gardens. It served as a burial site for Augustus and later members of the imperial family. Over the centuries, the mausoleum fell into disrepair and was used for various purposes, including a fortress and a theater. Today, it is a significant archaeological site, reflecting the grandeur of ancient Roman architecture and the legacy of Augustus in shaping the Roman Empire.