When were the walls of lucca built?

The walls of Lucca, Italy, were primarily constructed between the 16th and 17th centuries, with significant work starting around 1504 and continuing until the early 1600s. These robust Renaissance walls were built to enhance the city's defenses and replace earlier fortifications. The walls are notable for their well-preserved condition and unique design, featuring a broad walkway on top. Today, they serve as a popular promenade for both locals and tourists.