What does a sink owe you? Hella Jongerius has been asking that question since 1994, and the Vitra Design Museum's first major retrospective of her work proves she has never stopped. Over 400 objects, one very consistent argument: design should cost you something to look at.

Most flagship stores are spectacle without consequence. MVRDV's Tiffany & Co. Beijing wraps a four-storey building in translucent glass fins that ripple like a Elsa Peretti bracelet at urban scale, glow Tiffany Blue at night, and are designed to be fully dismantled and recycled when their time is up. The wave is serious.

In 1961 a Japanese architect built a house the size of a large apartment in Tokyo and called it a work of art. Sixty years later it was saved from demolition, shipped to Germany, and rebuilt beam by beam. The Umbrella House by Kazuo Shinohara is the kind of building that asks you to reconsider what architecture owes you.