Fondation Louis Vuitton in Paris France by Frank Gehry (expected completion 2014). Per the Fondation's website:
Like a floating ship in the trees; wide opened to nature, the building imagined by Frank Gehry expresses the spirit of the Fondation Louis Vuitton pour la Création, ever in state of becoming. It was conceived to be continuously reinvented with the passage of exhibitions and events. In exquisite harmony with the environment, its interior and exterior spaces breathe as one.