This weekend was short, 2 days instead of 4, so I went to Luxembourg. Luxembourg sits along a ridge and spreads down into a valley, so I walked up and down a lot of stairs and sloped paths. It isn't very big and you can walk the whole thing in less than a day. There also isn't much to do, but its worth going to see the landscape. At one point Luxembourg was very fortified, so there are castles and walls everywhere.