The task of transforming the lawn outside the Serpentine Gallery with a multi-purpose temporary Pavilion falls to the Spanish architectural duo SelgasCano for the commission’s fifteenth anniversary – and it's a trippy kaleidoscopic biomorphic form that fellow Spaniard Joan Miró would be proud of.
As the fifteenth installation opens this summer, tell us which of the previous 14 Pavilions you've liked most here