To celebrate our first decade in print, we're offering you the chance to win one of six classic chairs during Clerkenwell Design Week. All you have to do is doodle around a silhouette of the chair you want, putting it into an imaginary context, and drop it into one of the special Icon boxes at CDW. To find out more:

Sukhdev Sandhu visits the first museum exhibition by Metahaven, the studio that branded Wikileaks.

Link and Schmidt Hammer Lassen’s Northern Lights Cathedral in Norway is a space within which nature becomes a communal experience.

Helsinki architect JKMM’s copper-clad extension to Alvar Aalto’s 1967 library is a bold attempt to move on from the golden age of Finnish design.

This 9.5g disc of brass and nickel has proved reassuringly durable, surviving counterfeiting, inflation and the wrath of the Daily Mail to reach its 30th anniversary this year.

Architect Cottrell & Vermeulen has designed two areas for children in a bleak London hospital, bringing colour and joy to the children’s wards.

The sculptures and furniture dreamed up in Joep van Lieshout’s Rotterdam studio are the imagined products of dark, violent and anarchic worlds: a vast slave city, a World War Three landscape or, in his latest works, a pre-industrial tribal community.

Bercy Chen Studio has designed a home on a brownfield site in Texas that draws in Native American architecture and ecological concerns.

Fifty years separated the Brazilian artist’s two series of abstract photographs, but Isabel Stevens finds them both equally startling.

Hugh Broughton’s Antarctic research station is part Archigram, part Thunderbirds – a series of brightly coloured modules on skis.

Icon is ten years old this month! For this special “collectors” issue, we asked Paul Smith, Richard Rogers, Amanda Levete, Sebastian Bergne, Madelon Vriesendorp, Peter Marigold and David Rockwell to show us their private collections of objects that influence their work. And we also invited all our past cover stars, from Maarten Baas to Daniel Libeskind, to complete the Icon psychological test.

Konstantin Grcic has created a contemporary modular chair system that echoes wrought-iron Roman seating and Mies van der Rohe’s Barcelona Chair.