Casarasco castle was built in the 9th century and is one of the oldest in the region. It was one of castles owned by the Malaspina family and was mentioned first time in 1164. The northern wing is only remaining part of the original castle. Today the castle can be reached for example by the nature trail 'Sentiero delle fontane'.
The Citadelle of Quebec is an active military installation and official residence of both the Canadian monarch and the Governor General of Canada. It is located atop Cap Diamant, adjoining the Plains of Abraham in Quebec City. The citadel is the oldest military building in Canada, and forms part of the fortifications of Quebec City, which is one of only two cities in North America still surrounded by fortifications, the other being Campeche, Mexico.
The first fortifications in Quebec were built by the Governor General of New France Louis de Buade, and completed just in time for the Battle of Quebec in 1690.
After the British conquest in the second half of the 18th century, the problem of Quebec City's defences grew more acute.