Friedstein Castle is one of three castles located in the Jablonec nad Nisou district of Liberec. It was built during the fourteenth century, and the main purpose of its existence was to provide protection for the town, and in the sixteenth century it lost its function as a watchtower and became a shelter for the homeless, but today it is One of the most prominent tourist attractions in the area, hikers come to take pictures and admire this antique building.