Linz rewards visitors who prioritize wisely. Linz Castle overlooks the Danube with centuries of history packed into its walls, while Hauptplatz anchors the old town as a lively baroque square framed by pastel facades. Just steps away, the Trinity Column rises as a striking plague memorial and photogenic centerpiece. For contrast, the Ars Electronica Center pulls visitors into cutting-edge digital art and technology exhibits, showing Linz as a UNESCO City of Media Arts rather than just a historic stop. St. Martin's Church, one of Austria's oldest surviving churches, adds a quieter, contemplative note. Together these sights balance heritage, culture, and innovation in a compact, walkable route.