In today's frightening world, it's of little surprise that Londoners are retreating into their childhoods. Hence the proliferation of mini-golf venues, rainbow-coloured foodstuffs and dungaree-wearing across the capital. New Yorkers, in the midst of their own political turmoil, appear just as keen to stay in Neverland - as the opening of a set of giant swings goes to prove. 'The Swings: An Exercise in Musical Cooperation' is not only a big playground for grown-ups, itís an art exhibition. Each swing acts as a different instrument, and participants work together to produce a melody. The organisers say the installation, which lights up at night, 'offers a fresh look at the idea of cooperation - the notion that we can achieve more together'. Could play equipment be the solution to all the planet's ills? Here's hoping.