Köthen Castle, located in the town of Köthen in Germany, is a historic building that dates back to the 16th century. Originally a residence for the princes of Anhalt, it showcases Renaissance architecture and has been well-preserved over the years. The castle features beautiful gardens and several rooms that reflect the opulence of its past. Today, Köthen Castle serves as a cultural venue and houses various exhibitions. It is also known for its connection to the composer Johann Sebastian Bach, who worked in the area during the early 18th century. The castle remains a popular tourist attraction, drawing visitors interested in history and architecture.