Hainburg an der Donau is a small town located in Austria, near the border with Slovakia. It sits on the banks of the Danube River and is known for its historical significance and picturesque landscapes. The town features well-preserved medieval architecture, including the Hainburg Castle and charming old town streets. The area around Hainburg is rich in natural beauty, with nearby hills and the Donau-Auen National Park offering opportunities for outdoor activities. Hainburg also serves as a gateway to exploring the Vienna region, making it a popular destination for tourists and nature enthusiasts alike.