Shopping, working, watching movies and watching the Berlin monkeys groom each other: Bikini Berlin has many different facets. The former “Bikinihaus“ (Bikini House) from 1955 was recently remodeled into the world’s first concept mall. Exclusive retailers take advantage of its box concept, which they can use creatively for a set timeframe. In this interview, Dionys Ottl of the architecture firm Hild und K describes how the building complex could be designed in an ultra modern fashion despite monument protection issues and initial structural problems.