Istein castle was a rock castle built by the bishops of Basel in the 11th and 12th centuries. It was first time mentioned in 1185. The castle was stormed in 1410-1411 by the Basler troops. The modern fortress was built in 1900-1914 and destroyed after 1945.
St. Vitus Chapel, partially ruined, is one of two original castle chapels built in the 12th centurya. The current small chapel, which was built after the destruction of the castle in 1650 and destroyed by the French occupation forces in 1947, was rebuilt in the 1980s due to a citizens' initiative.
References:The Jan Hus Memorial stands at one end of Old Town Square. The huge monument depicts victorious Hussite warriors and Protestants who were forced into exile 200 years after Hus, and a young mother who symbolises national rebirth. The monument was so large that the sculptor designed and built his own villa and studio where the work could be carried out. It was unveiled in 1915 to commemorate the 500th anniversary of Jan Hus' martyrdom. The memorial was designed by Ladislav Šaloun and paid for solely by public donations.
Born in 1369, Hus became an influential religious thinker, philosopher, and reformer in Prague. He was a key predecessor to the Protestant movement of the sixteenth century. In his works he criticized religious moral decay of the Catholic Church. Accordingly, the Czech patriot Hus believed that mass should be given in the vernacular, or local language, rather than in Latin. He was inspired by the teachings of John Wycliffe.