Join 科学与技术 upcoming events being held in Slaný. Slaný is a historic city in the Central Bohemian Region of the Czech Republic, known for its well-preserved medieval architecture, including the Slaný Castle and the Gothic Church of the Assumption of the Virgin Mary, as well as its rich cultural heritage and vibrant events scene, such as the annual Slaný Onion Festival, making it an ideal destination for history enthusiasts and festival-goers alike.