Created in 1916 and deeply remodelled between 2001 and 2003, Grão Vasco Museum was established in the Três Escalões Palace, next to the Viseu Cathedral, where the old seminary used to be. http://www.centerofportugal.com/grao-vasco-museum/
Seen from far, the towers of the cathedral are a reference point for those visiting the city of Viseu.The current cathedral was built next to an ancient Swabian-Visigoth temple possibly dating back to the 10th century during which the city was the capital to a large territory between the Douro and Mondego rivers. http://www.centerofportugal.com/viseu-cathedral-se/