Rajsko (Zamczysko), known before World War II as Neidburg, is an artificial ruin located on the high right bank of the Kwisa River in the village of Zapusta. It was built between 1875 and 1878 on the initiative of Alexander von Minutoli, the owner of the nearby Biedrzychowice estate, who incorporated architectural details from local ruins of former churches and palaces, giving the structure its unique character. After the end of World War II, the ruins fell into a state of progressive deterioration. Since 2010, they have been privately owned and are undergoing comprehensive renovation, which has allowed for the restoration of both the hostel established within the complex and the castle itself. In 1925, the ruins were leased to the Lubań branch of the Verband Für Deutsche Jugendherbergen (Association for German Youth Hostels), leading to their reconstruction and adaptation into a youth hostel. Despite numerous undocumented claims about the existence of a castle on the site in the 13th century, there are no reliable historical sources to confirm this information. Thanks to its architectural details and fascinating history, Rajsko is an attractive site that combines elements of culture, history, and architecture, drawing the attention of both locals and tourists.