Osprey Fortress (2003–2008)
- Hadrian’s Wall AD 122–410 (2003)
- Afghanistan Cave Complexes 1979–2004 (2004)
- Fortifications of the Western Front 1914–18 (2004)
- Troy c. 1700-1250 BC (2004)
- D-Day Fortifications in Normandy (2005)
- US Strategic and Defensive Missile Systems 1950–2004 (2005)
- Cathar Castles (2006)
- The Berlin Wall and the Intra-German Border 1961-89 (2008)