Fodor's Expert Review Adolfkanonen

Part of Nazi Germany's coastal defense system, this massive naval gun was originally built to be used on a ship during World War II. The "Adolph Cannon" is now part of an interactive museum where you can explore its inner workings and see examples of the different types of missiles it could have fired. The gun is the last of its type left in the world, and is a reminder of the country's tragic history.