As part of LFA 2012, RIBA London and Regent Street matched retailers and architects for the Regent Street Windows Project with ‘Play’ as its theme. Paired with Reiss, we created a kaleidoscopic space within the depth of the window, blurring the traditional distinction between passerby and mannequin. The effect was a momentary and surreal daydream, full of aspiration and reflection. The Hall of Mirrors playfully presented a periscopic insight to the otherwise typically concealed Grade II-listed interior of the Reiss beyond. Participants both inside and out were invited to find themselves caught in a perceptual conundrum.