Not far from the Duomo (Naples Cathedral) on Vico Carminiello there is the Carminiello ai Mannesi Archaeological Complex, an archaeological site that dates to the 1st century BC. The oldest known remains on the site are from a domus, the house of an unknown person. At the beginning of the 1st century AD, a thermal complex was built on top of this structure. The two level complex is in opus reticulatum (reticulated brick work) and laterizio (Roman brick work). The lower level presumably housed the complex’s services (cistern, storage, etc.