Fortress 001 - Japanese Pacific Island Defenses 1941-45.
Fortress 002 - Hadrian's Wall 122-410.
Fortress 003 - U-Boat Bases and Bunkers 1941-45.
Fortress 004 - American Defenses of Corregidor & Manila Bay 1898-1945.
Fortress 005 - Japanese Castles 1540-1640.
Fortress 006 - American Civil War Fortifications (1).
Fortress 007 - The Lines Of Torres Vedras 1809-11.
Fortress 008 - Defenses of Pearl Harbor & Oahu 1907-50.
Fortress 009 - English Civil War Fortifications 1642-51.
Fortress 010 - The Maginot Line 1928-45.
Fortress 011 - Crusader Castles of the Teutonic Knights (1).
Fortress 012 - Fortresses of the Peninsular War 1808-14.
Fortress 013 - Norman Stone Castles (1).
Fortress 014 - Fortifications in Wessex c. 800-1066.
Fortress 015 - Germany's West Wall. The Siegfried Line.
Fortress 016 - The Fortifications of Malta 1530-1945.
Fortress 017 - Troy c. 1700-1250.
Fortress 018 - Norman Stone Castles (2).
Fortress 019 - Crusader Castles of the Teutonic Knights (2).
Fortress 020 - British Home Defences 1940-45.
Fortress 021 - Crusades Castles in the Holy Land 1097-1192.
Fortress 022 - Mycenaean Citadels c. 1350-1200 bc.
Fortress 023 - German Field Fortifications 1939-45.
Fortress 024 - Fortifications of the Western Front 1914-18.
Fortress 025 - The Walls of Constantinople 324-1453.
Fortress 026 - Afghanistan Cave Complexes 1979-2004.
Fortress 027 - French Fortresses in North America 1535-1763.
Fortress 028 - Forts of the American Frontier 1820-91.
Fortress 029 - US World War II & Korean War Field Fortifications 1941-53.
Fortress 030 - Fort Eben Emael.
Fortress 031 - Rome's Northern Frontier 70-235.
Fortress 032 - Crusader Castles in the Holy Land 1192-1302.
Fortress 033 - Special Forces Camps in Vietnam 1961-70.
Fortress 034 - Japanese Fortified Temples And Monasteries 710–1062.
Fortress 035 - British Fortifications in Zululand 1879.
Fortress 036 - US Strategic and Defensive Missile Systems 1950–2004.
Fortress 037 - D-Day Fortifications in Normandy или тут.
Fortress 038 - American Civil War Fortifications (2).
Fortress 039 - Russian Fortresses 1480-1682.
Fortress 040 - Ancient Greek Fortifications 500–300 BC.
Fortress 041 - The Channel Islands 1941-45.
Fortress 042 - The Vauban Fortifications of France.
Fortress 043 - Roman Legionary Fortresses 27 BC - AD 378.
Fortress 044 - American Coastal Defences 1885–1950.
Fortress 045 - German Defences in Italy in World War II.
Fortress 046 - Castles and Tower Houses of the Scottish Clans 1450-1650.
Fortress 047 - Fortifications of the Incas 1200–1531.
Fortress 048 - Viet Cong and NVA Tunnels and Fortifications of the Vietnam War.
Fortress 049 - The Spanish Main 1492–1800.
Fortress 050 - The Forts of Celtic Britain.
Fortress 051 - Indian Castles 1206–1526.
Fortress 052 - The Fortifications of Gibraltar 1068–1945.
Fortress 053 - Defending Space.
Fortress 054 - Forts of the American Frontier 1820–91
Fortress 055 - Cathar Castles.
Fortress 056 - Rome's Saxon Shore.
Fortress 057 - The Great Wall of China 221 BC - AD 1644.
Fortress 058 - Vietnam Firebases 1965-73.
Fortress 059 - Crusader Castles in Cyprus, Greece and the Aegean 1191-1571.
Fortress 060 - The Forts of the Meuse in World War I.
Fortress 061 - Medieval Russian Fortresses AD 862-1480.
Fortress 062 - Soviet Field Fortifications 1941-45.
Fortress 063 - The Atlantic Wall (1).
Fortress 064 - The Castles of Edward I in Wales 1277–1307.
Fortress 065 - The Forts of Judaea 168 BC–AD 73.
Fortress 066 - The Castles of Henry VIII.
Fortress 067 - Japanese Castles in Korea 1592-98.
Fortress 068 - American Civil War Fortifications (3).
Fortress 069 - The Berlin Wall and the Intra-German Border 1961-89
Fortress 070 - Strongholds of the Border Reivers
Fortress 071 - The Walls of Rome
Fortress 072 - German V-Weapon Sites 1943–45
Fortress 073 - Hittite Fortifications c.1650-700 BC
Fortress 074 - Japanese Castles AD 250–1540
Fortress 075 - The Forts of New France in Northeast America 1600–1763
Fortress 076 - Saracen Strongholds AD 630-1050
Fortress 077 - The Stalin and Molotov Lines
Fortress 078 - The German Fortress of Metz 1870-1944
Fortress 079 - Israeli Fortifications of the October War 1973
Fortress 080 - British Forts in the Age of Arthur
Fortress 081 - Maori Fortifications
Fortress 082 - Scottish Baronial Castles 1250-1450
Fortress 083 - Roman Auxiliary Forts 27 BC-AD 378
Fortress 084 - Chinese Walled Cities 221 BC-AD 1644
Fortress 085 - Scapa Flow: The defences of Britain’s great fleet anchorage 1914-1945
Fortress 086 - English Castles 1200-1300
Fortress 087 - Saracen Strongholds 1100–1500: The Central and Eastern Islamic Lands
Fortress 088 - The Mannerheim Line 1920-1939.Finnish Fortifications of the Winter War
Fortress 089 - The Atlantic Wall (2): Belgium, The Netherlands, Denmark and Norway
Fortress 090 - Greek Fortifications of Asia Minor 500-130 BC
Fortress 091 - The Fortifications of Ancient Israel and Judah 1200-586 BC