Papers from a congress that took place at the University of Leuven from the 19th to 21st September, 2005. Contents: Preface (Marc Lodewijckx); 1) On the Precipice in Iceland (Oscar Aldred, Elin Osk Hreidarsdottir); 2) The 'ICCD-Aerofototeca Nazionale' Aerial Photo Collections (M. Filomena Boemi); 3) Heritage Stewardship: a New Tool for Old Heritage (Karl Cordemans); 4) Accessing Ireland's Growing and Diverse Aerial Archaeological Resources (Anthony Corns, Robert Shaw); 5) Methodologies for the Extraction of Archaeological Features from Very High-Resolution Ikonos-2 Remote Sensing Imagery, Hisar (Southwest Turkey) (Veronique De Laet, Etienne Paulissen, Marc Waelkens); 6) Declassified Intelligence Satellite Photographs an the Archaeology of Moscow's Cold War Anti-Ballistic Missile System (Martin J.F. Fowler);"