Burg Taggenbrunn, a revitalized castle in Sankt Georgen am Längsee, Carinthia, rises on a hilltop where Celtic-Roman settlements once flourished in the 6th century BC. First documented in writing in 1142, this castle was built in the 12th century under the Archbishopric of Salzburg and witnessed the medieval passage through destruction and rebuilding before becoming a ruin in 1796. Modern transformation began in 2011 when entrepreneur Alfred Riedl purchased Taggenbrunn and converted it into Carinthia's largest winery alongside a hotel, restaurant, and art exhibition space. The castle now hosts the renowned Taggenbrunner Festivals and offers wine tastings amid the Alpe-Adria landscape, seamlessly bridging nearly 900 years of history from medieval fortress to contemporary cultural and gastronomic venue.