Location. Overlooking the River Spree and Berlin Cathedral, the avant-garde Radisson SAS Hotel Berlin in central Berlin, Germany, is 100 metres from the Red Town Hall. Opened in 2004, the modern hotel is 300 metres from Berlin TV Tower and Museum Island. Hotel Features. Epitomising 21st-century design, the Radisson SAS Hotel Berlin spirals around the world's largest cylindrical aquarium, which fills the skylit atrium with turquoise light. Dark wood floors and cream linen create a minimalist feel...