List of fortifications - Definition and Overview

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.

• 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
• Montsegur
• Offa's Dyke
• Per Albin Line
• Siegfried Line
• Stalin Line
• Suomenlinna

See also: List of forts, List of castles, List of walls, Martello tower