Aarhus is a city in Denmark on the Jutland peninsula’s east coast. Den Gamle By is its old town open-air museum, with centuries-old timbered houses. Nearby are the greenhouses of the Aarhus Botanical Garden. In the center, the multistory ARoS art museum shows global contemporary works. The underground Viking Museum explores early local history. Nearby, Aarhus Cathedral has restored 14th- to 16th-century frescoes.