The Vilnius Castle Complex is a historic site located in Vilnius, the capital of Lithuania. It consists of several structures, including the Upper Castle, Lower Castle, and the Royal Palace. The complex showcases a blend of architectural styles, reflecting its long history from the 14th century to the present. The Upper Castle offers panoramic views of the city and is home to the iconic Gediminas Tower, a symbol of Lithuanian heritage. The complex is a popular tourist destination, providing insights into the country's past and its significance in the Grand Duchy of Lithuania.