Nassau

Ehrenbreitstein Fortress (German: Festung Ehrenbreitstein) is a

Deutsche Eck (German Corner) is the name of a headland in Koblenz

The Marksburg is a fortress above the town of Braubach in

Burg Rheinfels is a castle ruin located in Sankt Goar, Germany

Stolzenfels Castle (German: Schloss Stolzenfels) is a castle near

Lahneck Castle is a medieval fortress located in the city of Lahnstein

Burg Maus (meaning Mouse Castle in German) is a castle above the

Burg Katz is a castle above the German town of St. Goarshausen in