Eda Skans is a redoubt built by Gustaf Oxenstierna in 1657 against the threat of Denmark-Norway. It was rebuilt in 1676 and again in 1808. It was demolished when the union between Sweden and Norway was agreed. The restoration began in 1939 and today there isa museum where you can find an extensive collection of weapons, uniforms, paintings, documents and images. There are also findings from the lake Hugn here.
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.