Stein Castle is a castle ruin above the municipality of Baden in the canton of Aargau in Switzerland. It is a Swiss heritage site of national significance.
Wikipedia https://en.wikipedia.org/wiki/Stein_Castle,_Aargau
Address 11 Rütistrasse, Baden 5400, Switzerland
Coordinates 47°28'23.589" N 8°18'19.092" E