This is a list of fortifications past and present, a fortification being a major physical defensive structure often composed of a more or less wall-connected series of forts. Fortifications (Latin fortis, strong, and facere, to make) are military constructions designed for defensive warfare. ... A wall is a usually solid structure that defines and sometimes protects space. ... Fortifications (Latin fortis, strong, and facere, to make) are military constructions designed for defensive warfare. ...

• Antonine Wall
• Atlantic Wall
• Baggush Box
• Danevirke
• Götavirke
• Great Wall of China
• Gustav Line
• Hadrian's Wall
• Hilsea lines
• Hindenburg line
• Intramuros, Manila
• Koporye, Russia
• Lines of Torres Vedras
• London Wall
• Maginot Line
• Mannerheim Line
• Molotov Line
• Montsegur
• Offa's Dyke
• Grim's Dyke
• Per Albin Line
• Siegfried Line
• Stalin Line
• Suomenlinna

See also: List of forts, List of castles, List of walls, Martello tower The Antonine Wall, looking east, from Barr Hill between Twechar and Croy The Antonine Wall is a stone and turf fortification, built by the Romans across what is now lowland Scotland. ... The Atlantic Wall was an extensive system of coastal fortifications built by the German Third Reich during the Second World War along the western coast of Europe (1942-44) in order to defend against an anticipated Anglo-American invasion of the continent from Great Britain. ... The Baggush Box, during World War II, was a British Army fortification, of the Western Desert Force, which was located to the east of Mersa Matruh, near Maarten Baggush, in Egypt, Africa. ... Danevirke, also known as Dannevirke or Danewerk, means Danes work. It is the name for the Danish earthen defense structure, which stretches from the swampy moors of west Jutland to the town of Schleswig, situated at Slien at the Baltic Sea, near the Viking trade centre of Hedeby. ... Götavirke (Geatish Dyke) are the remains of a defensive wall going from north to south between to villages called Västra Husby and Hylinge in Ostrogothia in present-day Sweden. ... The Great Wall of China (Traditional Chinese: 長城; Simplified Chinese: 长城; pinyin: ), also known in China as the Great Wall of 10,000 Li¹ (Traditional Chinese: 萬里長城; Simplified Chinese: 万里长城; pinyin: ), is an ancient Chinese fortification built from the end of the 15th century until the beginning of the 16th... The Winter Line was a series of German military fortifications in Italy, constructed during World War II by Organisation Todt. ... Hadrians Wall (in Latin: Vallum Hadriani) was a stone and turf fortification, built by the Romans across the width of Great Britain to prevent military raids by the Pictish tribes of Scotland to the north, to improve economic stability and provide peaceful conditions in the south, to define the... The Hilsea lines are a line of fortifications built to protect the Northern approach to Portsea, an island of the coast of England containing Portsmouth and its key naval base. ... The Hindenburg Line was a vast system of defences in Northern France constructed by the Germans during the winter of 1916– 17 during World War I; the Germans called it the Siegfried Line. ... Intramuros ca. ... Manila (Maynila in Filipino) is the capital city of the Philippines. ... Koporye Fortress near St Petersburg Koporye (Russian: Копорье) is a historic village in Russia, about 100 km to the west of St Petersburg, which contains some of the most impressive medieval ruins in Russia. ... The Lines of Torres Vedras were a line of forts in Portugal built in secrecy between November 1809 and September 1810 by Portuguese workers, under the supervision of Army Engineers. ... London Wall was the defensive wall built by the Romans around Londinium, their strategically important port town on the river Thames in England. ... Maginot Line fortification, 2002 The Maginot Line was a line of concrete fortifications, tank obstacles, machine gun posts and other defenses which France constructed along her borders with Germany and with Italy in the wake of World War I. Generally the term describes either the entire system or just the... The Mannerheim Line was a defensive fortification line on the Karelian Isthmus built by Finland against the Soviet Union. ... The so-called Molotov Line was a system of fortifications built by the Soviet Union in the years 1940-1941, along its new western border after it annexed the Baltic States, Eastern Poland and Bessarabia. ... Montségur is a commune of the Ariège département in France. ... Offas Dyke is a massive earthwork between England and Wales, running from the estuary of the River Dee in the north to the River Wye in the south (approximately 240 km). ... The Per Albin Line was a 500 kilometer long line of fortifications erected during World War II around the coast of southern Sweden to protect the country from a possible German invasion. ... Bunker on the Siegfried line The original Siegfried line was a line of defensive forts and tank defences built by Germany along their border with France in 1916-1917 during World War I. However, in English, Siegfried line more commonly refers to the similar World War II defensive line, built... The Stalin Line was a line of fortifications along the western border of the Soviet Union. ... Utsikt över Sveaborg (View over Sveaborg), painting by Augustin Ehrensvärd Suomenlinna (Finnish), or Sveaborg (Swedish), is an inhabited sea fortress built on six islands, today within Helsinki, the capital of Finland. ... This is a list for articles on notable historic forts which may or may not be under current active use by a military. ... The List of castles is a link page for any castle in the sense of a fortified building. ... This is a list of famous walls. ... Martello towers are small defensive forts built by the British Empire at the time of the Napoleonic Wars. ...