The Alt-Falkenstein Castle was probably built around 1100 by the Klus family. Today it houses a local history museum, which is open from April to October. There you can explore …
Neu-Thierstein Castle, also known as Thierstein Castle, is the ruin of a spur castle between Büsserach and Erschwil in the Thierstein district, canton of Solothurn. It is the symbol of …