The monumental Mausoleo de Las Vegas

Situated in the hamlet of Las Vegas de San Antonio, the Mausoleo de Las Vegas is located on the left bank of the Tagus River. This monumental tomb, from the late Roman period, stands out as a large building typologically similar to central sepulchral buildings. It continued to be used as a building during the Visigothic, Islamic, and medieval periods, associated with a necropolis containing residential structures built after its construction and a series of burials of both children and adults.

The mausoleum structure is an octagonal building. The immoveable structure consists of foundations of two concentric lines, entry notches, openings, and supports, as well as a crypt in the shape of an octagonal segment in the central half. The construction is composed of opus caementicium, while the crypt is built with carved granite blocks. The crypt's vault was made of bricks with an interior stucco coating, and the floors were completed with opus signinum, with remains of marble fragments that lined the building.

Archaeological findings include fine and common ceramics from the late Roman, Visigothic, and medieval periods. At least three sarcophagi were found in the mausoleum; while two granite sarcophagi are missing, a marble sarcophagus has been documented. These findings highlight the site's significance as a major monumental tomb within a necropolis.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons