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 Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople since its founding as the capital of the Eastern Roman Empire.

The Aurelian Walls are a line of city walls built between 271 AD and 275 AD in Rome, Italy.

The Walls of Jerusalem are a series of stone structures that surround the Old City of Jerusalem.

The Walls of Dubrovnik are a series of defensive stone walls that have surrounded and protected the citizens of the afterward proclaimed maritime city-state of Dubrovnik.

The Roman Walls of Lugo are ancient fortifications in Galicia, Spain.

The Walls of Ávila are a Romanesque military fence that surrounds the old town of the Spanish city of Ávila.

Danevirke, a UNESCO World Heritage Site, is an extensive defensive wall in Northern Germany, specifically in Schleswig-Holstein.

Los Millares is one of the most important prehistoric archaeological sites in Spain.

The Old City of Jerusalem is a 0.9 square kilometers walled area within the modern city of Jerusalem.