UAV photogrammetry for archaeological site survey. 3D models at the Hierapolis in Phrygia (Turkey) Filiberto Chiabrando | Francesco D'Andria | Giulia Sammartano | Antonia Spanò | Show more Filiberto Chiabrando https://orcid.org/0000-0002-4982-5236 Italy Politecnico di Torino Department of Architecture and DesignResearcher Francesco D'Andria Italy Università del Salento Department of Cultural HeritageFull professor Giulia Sammartano https://orcid.org/0000-0002-7474-1544 Italy Politecnico di Torino Department of Architecture and DesignPhD student Antonia Spanò https://orcid.org/0000-0003-4243-7959 Italy Politecnico di Torino Department of Architecture and DesignAssociate professor Submitted: 2016-06-16 | Accepted: 2017-08-04 | Published: 2018-01-10 DOI: https://doi.org/10.4995/var.2018.5958