Spandau Citadel is a historic fortress located in the Spandau district of Berlin, Germany. Built in the 16th century, it served as a military stronghold and played a significant role in the defense of the city. The citadel features impressive Renaissance architecture and is surrounded by a moat, making it a notable example of military design from that era. Today, Spandau Citadel is a popular tourist attraction and cultural site. It houses several museums, including the Museum of the Citadel and the Spandau Citadel Museum, which showcase the history of the fortress and the surrounding region. Visitors can explore its well-preserved walls and enjoy scenic views of the Havel River.