Fortress - Böcker

Germany’s East Wall in World War II

Atlantic Wall (3)

The Sudwall

Forts of the American Revolution 1775-83

Hindenburg Line

Defenses of Bermuda 1612–1995

Moscow Kremlin

Russia’s Fortified Heart

American Defenses of Corregidor and Manila Bay 1898–1945

Japanese Castles 1540–1640

Hadrian’s Wall AD 122–410

American Civil War Fortifications (1)

Coastal brick and stone forts

U-Boat Bases and Bunkers 1941–45

Crusader Castles of the Teutonic Knights (1)

The red-brick castles of Prussia 1230–1466

Defenses of Pearl Harbor and Oahu 1907–50

Lines of Torres Vedras 1809–11

Fortresses of the Peninsular War 1808–14

Norman Stone Castles (1)

The British Isles 1066–1216

Norman Stone Castles (2)

Europe 950–1204

English Civil War Fortifications 1642–51

Fortifications in Wessex c. 800–1066

Maginot Line 1928–45

Germany's West Wall

The Siegfried Line

Fortifications of Malta 1530–1945

Troy c. 1700–1250 BC

Crusader Castles of the Teutonic Knights (2)

The stone castles of Latvia and Estonia 1185–1560

French Fortresses in North America 1535–1763

Québec, Montréal, Louisbourg and New Orleans

Crusader Castles in the Holy Land 1097–1192

Walls of Constantinople AD 324–1453

Fortifications of the Western Front 1914–18

German Field Fortifications 1939–45