Beach cafe, billionaire’s retreat, wedding marquee: second lives of the Serpentine pavilions

Everyone from Ai Weiwei and Frank Gehry to Zaha Hadid has designed a folly for the Serpentine gallery, but what happens to these starchitect baubles after their summer in the sun?

How we made the Brompton folding bike

Andrew Ritchie, inventor: ‘I set out to make a magic carpet you can keep in your pocket. It’s been a perilous journey’

Wings of desire: how butterflies have captivated artists

From Bruegel to Nabokov and The Silence of the Lambs, butterflies have flitted through our imaginations and into our culture. Patrick Barkham pins up the choice specimens – and finds out why new film The Duke of Burgundy is awash with them

Architects David Marks and Julia Barfield: how we made the London Eye

David Marks: ‘Our house and our livelihoods were on the line. Then – in front of the world’s media – it didn’t lift up’

Has art boxed itself into a corner?

They’ve starved, stripped and suffocated. We’ve seen them sleep, do shopping and read out lists. Now, PJ Harvey wants us to watch her record a whole album while she sits in a big box. Time to pack in art’s most claustrophobic trend?

Art Basel, Miami and the beach that went boom

Lady Gaga’s recreating a painting from 1793 and Outkast’s André 3000 is showing off his jumpsuits. As the rich, famous and fabulous steer their jets to Miami, we look at how the art fair transformed the city