Europe is famous for castles, and if you want to see castles while traveling in Germany, you can do so simply by taking a boat ride along the Rhine river. You are bound to see castles in Heidelberg, Mainz, Darmstadt and Hanau all within 1 to 1.5 hours drive from Frankfurt. So it is something you shouldn’t miss. Now, what if you want to buy one of these castles along the Rhine river? Not a problem because a castle would cost only one Euro! Yes, seriously. These castles are that cheap to buy. Maintenance however, is a different story. It will cost you a good million. Here is a picture of an amazing castle along the Rhine river in Germany, which I took during my visit to Germany.