The Chichester Roman Walls are the remnants of a defensive structure built around the city of Chichester in West Sussex, England. Constructed in the late 3rd century AD, these walls were part of a larger fortification system designed to protect the city from invasions. The walls are made of local stone and originally stood about 3 meters high. Today, sections of the walls still exist, allowing visitors to walk along parts of the ancient structure. The walls are a significant historical site, showcasing the Roman influence in Britain and providing insight into the city's past. They are a popular attraction for tourists and history enthusiasts alike.