Kaunas Castle is a medieval castle located in the city of Kaunas, Lithuania. The castle was built in the 14th century and played an important role in the defense of the city and the surrounding region. Over the centuries, the castle has been destroyed and rebuilt several times and has served as a residence for various rulers and a prison. Today, Kaunas Castle is a popular tourist attraction and a cultural heritage site. Visitors can explore the castle's historical exhibits and enjoy the beautiful views of the surrounding area from the castle tower. The castle is also used for various events and cultural activities throughout the year.