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?

A natural fit: Margaret Howell on her fashion tribute to Barbara Hepworth

The fashion designer reveals how the first major Barbara Hepworth exhibition in London for almost 50 years at Tate Britain inspired a range of clothes

Rave foam, sci-fi sportswear and spanners as jewellery: the key trends from London Collections: Men, SS16

The London men’s shows were all about looking good on the dancefloor – think mashed ravers, 90s slackers or northern soul boys. Plus, Tinie Tempah on how to build the perfect catwalk soundtrack

‘I prefer art to fast cars’: fund manager helps British Museum buy Picasso works

Hamish Parker, the modest but discerning benefactor, has donated millions to enable the museum to acquire prints by the great Spanish artist

How to change the world: Greenpeace and the power of the mindbomb

The director and key figures in an award-winning documentary talk about the early days of the activist group and how shocking images were used for global impact

Cult food: the most incredible dishes to share this summer

From clay-baked duck, smashed open at the table, to the world’s best bacon sandwich, here is 2015’s must-eat – and must-Instagram – food. Some even have Nigella’s seal of approval