The "Walls of Jericho" refer to the ancient fortifications surrounding the city of Jericho, one of the oldest inhabited cities in the world. According to the biblical account in the Book of Joshua, these walls were famously brought down by the Israelites after they marched around the city for seven days, blowing trumpets and shouting. Archaeological evidence suggests that the walls of Jericho were significant in the city's defense during various periods. The site has been extensively studied, revealing multiple layers of construction and destruction, indicating its long history and strategic importance in ancient times.