Hadrian's Wall, also known as the Roman Wall, is a former defensive fortification of the Roman province of Britannia.
The Antonine Wall, known to the Romans as Vallum Antonini, was a turf fortification on stone foundations, built by the Romans across what is now the Central Belt of Scotland.
The Upper German-Raetian Limes is an archaeological site located in Bavaria and Raetia.
The Hungarian border barrier is a series of fences constructed by Hungary in 2015.
The Limes Germanicus was a line of frontier fortifications that bounded the ancient Roman provinces of Germania Inferior, Germania Superior and Raetia.
The Lower Germanic Limes is an archaeological site celebrated as a cultural heritage monument of Germany.
The Hushan Great Wall stands as a formidable fortification.
The Limes Tripolitanus consists of ancient fortified barriers.
Claustra Alpium Iuliarum consists of walls and fortifications stretching across the Slovenian Littoral to the inland.
The Wetterau Limes is part of the Upper Germanic-Rhaetian Limes, a former frontier of the Roman Empire.