Board your motorcoach at the pier and drive to the starting point of a walking tour of the old city. Visit the cathedral, Denmark's longest and tallest church. The interior boasts over frescoes from the 14th and 15th centuries. Walk to the Viking Museum, located in a bank basement. The museum exhibits Viking relics unearthed in 1963 during the bank's construction. The centerpiece of the museum is a detailed model of Aarhus as it appeared in the late 10th century. Continue to the Crypt Church of Our Lady. The Church of Our Lady was the sole building from a 12th-century Dominican priory to survive Denmark's Protestant Reformation. While restoring the church in the 1950s, workers uncovered an earlier, 11th-century stone crypt church below. The oldest existing stone church in all of Scandinavia, Aarhus's Crypt Church is still used for worship. Your return route travels along the river, the city's umbilicus.