Isengard is a fictional fortress in J.R.R. Tolkien's Middle-earth, prominently featured in The Lord of the Rings. It is characterized by its towering walls and the iconic Orthanc tower, which serves as the stronghold of Saruman, a powerful wizard. Originally a place of wisdom and learning, Isengard becomes a center of dark power as Saruman succumbs to corruption. Surrounded by lush lands, Isengard is located in the region of Rohan. Its transformation from a place of beauty to one of menace reflects the broader themes of power and corruption in Tolkien's work. The fate of Isengard is closely tied to the events of the War of the Ring.