In 2015, scholars discovered that from the 9th century, at least until 1349 (that is, until the earthquake partially damaged the building), the former ancient battle arena – the Colosseum – functioned as a rental space for the inhabitants of the Eternal City. The houses and workshops were located in the former arena, where gladiators fought to the death.
Archaeologists found ceramic vessels for cooking in the Colosseum and an ivory figurine of a monkey – the latter probably served as a chess piece. In addition to the above finds, the calcatorium was also discovered – a huge container used to squeeze grapes for wine production.