On a quiet residential street this turn-of-the-20th-century mansion feels like a hideaway even though Ku'damm is a short walk away. Luxurious minimalism reigns once you get inside. You can breakfast and sip afternoon tea at the sun-soaked tables in the atrium courtyard or, in the evening, sit and listen to piano music. Between courses of New Nordic cuisine in the restaurant Quadriga, diners lean back in cherrywood chairs by Frank Lloyd Wright. Guest-room furnishings include pieces by Le Corbusier and Mies van der Rohe. Complementing the timeless Bauhaus style are ikebana floral arrangements.