Holleberg

Dorneck Castle is a castle in the municipality of Dornach of the Canton of Solothurn in Switzerland. It is a Swiss heritage site of national significance.

Birseck Castle (German: Burg Birseck) is located in the municipality of Arlesheim in the canton of Basel-Country. Birseck Castle is also called "Untere Burg Birseck" or "Vordere Burg Birseck" and is one of four castles on a slope called Birseck that confines the plain of the Birs river.The Eremitage building group that includes the castle is listed as a heritage site of national significance.

The Goetheanum, located in Dornach, in the canton of Solothurn, Switzerland, is the world center for the anthroposophical movement.The building was designed by Rudolf Steiner and named after Johann Wolfgang von Goethe. It includes two performance halls (1500 seats), gallery and lecture spaces, a library, a bookstore, and administrative spaces for the Anthroposophical Society; neighboring buildings house the society's research and educational facilities.