The Thiers Wall is a historic fortification located in Paris, France. Built between 1841 and 1844, it was designed to protect the city from potential invasions. The wall stretches approximately 33 kilometers and features several bastions and gates, showcasing the military architecture of the time. Today, much of the Thiers Wall has been dismantled, but remnants can still be seen throughout Paris. The wall's construction marked a significant period in the city's history, reflecting the changing needs of urban defense during the 19th century. It remains a point of interest for both history enthusiasts and tourists.