The present research thesis, studies the architecture that develops within the earth and which is incorporated into the geomorphology of the place. This architecture is the result of an excavation process that develops, as material is removed from the ground or rock, resulting in functional and aesthetic spatial forms. As we approach the synthetic principles of some excavated dwellings and worship places of vernacular architecture of the past, an effort is made to detect their common features and the typologies that are generated. Additionally, based on historical facts, we try to answer the questions that arise in relation to the reasons and conditions of the creation of such forms within the wider context of the socio-cultural and topographical conditions, as well as on the archetypical concepts of place and tradition. The study continues with the presentation of some modernday named excavated buildings and sums up with a subsequent reflection on the previously raised issues.