The Architects' Mausoleum was a crypt located beneath the city of Vaale on the planet Dianth. It was the final resting place of the Ring of Fortune, one of the Rings of Vaale, artifacts created by the Architects of Vaale. While searching for the Rings as part of the crew of the rogue archaeologist Doctor Chelli Aphra, Eustacia Okka discovered the Architects' Mausoleum, taking the Ring of Fortune.