Mausoleum of Helena

The Mausoleum of Helena is an ancient building in Rome, Italy, located on the Via Casilina, corresponding to the 3rd mile of the ancient Via Labicana. It was built by the Roman emperor Constantine I between 326 and 330, originally as a tomb for himself, as indicated by his sarcophagus found there, but later assigned to his mother Helena who died in 330. Access to the mausoleum and the catacombs is to the west of the church of Santi Marcellino e Pietro ad Duas Lauros.