Roman walls of Lugo - Credit: Wikimedia Commons
The Roman walls of Lugo (Spanish, Galician: Muralla Romana de Lugo) are the ancient Roman defensive walls stretching around the Old Town of Lugo, Spain. They were built in the third century AD to defend the ancient Roman town of Lucus Augusti. The fortifications, still largely intact, were declared a UNESCO World Heritage Site in 2000 and are a popular tourist attraction. Read more on Wikipedia
Source: en.wikipedia.org