Oscarsborg Castle Hotel places guests inside the active 1850s military fortress that commanded the narrowest point of Oslo Fjord—the same artillery batteries that sank the German cruiser Blücher on April 9, 1940, altering the invasion timeline of Norway. This is not a decorative castle experience. You occupy operational casemates, walk fortified ramparts built to withstand … Continue reading Oscarsborg Castle Hotel: Island Fortress Command Over Oslo Fjord