Because architecture can. Each year the Serpentine Gallery in London’s Hyde Park commissions a temporary summer pavilion. Risqué architects like Zaha Hadid and Rem Koolhaas use the occasion to introduce London to all manner of improbable and adventurous ideas. Like, can architecture float? This season it can. Japanese architectural duo SANAA have outdone themselves, providing us with a park-enhancing project inspired by leaves, rain and sky. An amoebic, mirrored canopy supported by delicate columns hovers between the trees like an enormous floating puddle. Reflecting the surroundings and the changing weather, its damn near invisible. This the love child of le Corbusier and Yoda, and for visitors it’s as calming and mesmerizing as a melodious Buddhist chant. Keep your eye on it, if you can: the pavilion also hosts a series of talks and events this season.