Château de Berg in Colmar-Berg

You're standing at Berg Castle in Colmar-Berg, right in the middle of Luxembourg. This isn't a museum, and it isn't a ruin either. This is where the Grand Ducal family lives. It's their main home, even though the official palace in Luxembourg City tends to get more of the photos. Close by, the Alzette and the Attert meet, two of the country's most important rivers.