The Ridderzaal, or Knights' Hall, is a historic building located in The Hague, Netherlands. It was constructed in the 13th century and serves as a significant symbol of Dutch history and architecture. The hall features a stunning wooden ceiling and large stained glass windows, showcasing its medieval design. Today, the Ridderzaal is primarily used for official ceremonies, including the annual Prince's Day event, where the Dutch monarch addresses the nation. The building is part of the Binnenhof, the political center of the Netherlands, and attracts many visitors interested in its rich heritage and cultural significance.