The audioguide tells the story, describes architecture and reports interesting facts about the mausoleum of Santa Costanza, the daughter of the founder of Constantinopol, which is one of the main examples of late-ancient architecture among Roman monuments.

This building was built and dedicated to the daughter of Constantine the Great, the Byzantine emperor who founded Constantinople.

Most researchers believe it dates back to the years 337-350, when Constantine lived in Rome. The church we see today (Sant'Agnese outside the walls) is not the original church of Sant'Agnese, but a reconstruction, from the seventh century, when Pope Onorio I decided to erect a new construction on the ruins of the Basilica of Constantine.

At the base of the Mausoleum's architecture there are exceptional Roman models such as the Pantheon, but its structure is innovative with its concentric circular spaces, borrowed from the Roundabout of the Basilica of the Holy Sepulcher, in Jerusalem, whose construction was ordered by Constantine himself and his mother Elena.

You can examine the 3D model of the church and observe its interior through the MuByz App. The audioguide has been made by professionals in the field of history and art.