A tiny canal bridge in London doesn’t just open for boat traffic, it curls up like a caterpillar. A suave redesign of London’s familiar double-decker bus invites passengers to the upper deck with a curving ribbon window that follows a winding staircase. An exposition building in Shanghai is covered in what look like porcupine quills. A pier in the Hudson is reimagined as a miniature island park with an amphitheater nestled within Lilliputian hills.