Aarhus rewards a short stay if you pick wisely. Start at ARoS Aarhus Art Museum, whose rainbow rooftop walkway has become the citys signature view, then cross to Aarhus Cathedral (Domkirke) for the countrys longest nave and centuries of layered history. Round things out at Aarhus Old Town (Gammel By), an open-air museum of reassembled historic houses that makes Danish daily life across the centuries easy to picture. Add a walk through the Aarhus Harbor District to see the citys modern side and catch pieces of The Walls street art along the way. Together these stops balance ancient, historic, and contemporary Aarhus without requiring more than a day or two on foot.