Spanish architects MX_SI have won a competition to design an extension to a Finnish museum of art with this proposal that features recessed zigzagging windows. More about Extension to the Serlachius Museum Gösta by MX_SI
While Dezeen prepares for the 2011 London Design Festival, here's a previously unseen interview we filmed with Spanish designer Jaime Hayón during last year's festival. More about Interview with Jaime Hayón
Show RCA 2011: to continue our series of graduate projects from the Royal College of Art, here's a stool by Jack Smith that collapses when its seat is lifted. More about Folding Stool by Jack Smith
Visitors can climb a staircase over the roof of this spiralling community centre in Lille by French architects Colboc Franzen & Associés. More about Neighbourhood Centre by Colboc Franzen & Associés
Unable to prevent revellers urinating against their trees, Roskilde Festival in Denmark installed tree-mounted urinals by Dutch designers Aandeboom. More about P-Tree by Aandeboom
Danish designer Jens Martin Skibsted talks about his bicycle brand Biomega and the future of urban cycling in this previously unseen video filmed by Dezeen during the London Design Festival 2010. More about Interview with Jens Martin Skibsted
Show RCA 2011: Royal College of Art graduates Attua Aparicio and Oscar Wanless have invented a new manufacturing process that involves steaming polystyrene beads inside fabric moulds. More about NSEPS by Silo
British architects Carmody Groarke have completed this granite monolith outside London's Natural History Museum to commemorate victims of the 2004 Indian Ocean Tsunami. More about Indian Ocean Tsunami Memorial by Carmody Groarke
Show RCA 2011: Royal College of Art graduate Ariane Prin uses waste from college workshops as the raw material for her on-site pencil factory More about From Here For Here by Ariane Prin
Competition: we've teamed up with designers Cibicworkshop to give away five construction games based on iconic buildings by renaissance architect Andrea Palladio. More about Competition: five sets of The Play of Combinations by Cibicworkshop to be won
Here are some more photographs of Peter Zumthor's recently-opened Serpentine Gallery Pavilion in London, taken by UK photographers Hufton + Crow. Update: this project is included in Dezeen Book of Ideas, which is on sale now for £12. More about Serpentine Gallery Pavilion 2011 by Peter Zumthor photographed by Hufton + Crow
Non-profit organisation Assemble have constructed a temporary canal-side cinema under a London motorway flyover. More about Folly for a Flyover by Assemble
Criss-crossing lengths of aluminium cover the glass facade of this Barcelona skyscraper by Spanish architects EMBA. More about Torre Telefónica Diagonal ZeroZero by EMBA
This 28 metre-high steel sculpture of the Jaguar E-Type car was designed by Gerry Judah for the Goodwood Festival of Speed, which took place in Sussex, UK, last weekend. More about Jaguar E-Type Sculpture by Gerry Judah
Check out all our stories about this year's Royal College of Art graduate show, including a 3D-printer that uses sunlight to make sand into glass objects, clothes that feed information to smart phones and spectacle frames made of hair. See all the stories »
More about Featured event: Show RCA 2011
In this final movie from our series filmed at the Design Academy Eindhoven My Way talks in Milan, academy graduate Bas Princen talks about his work as a photographer. More about Interview with Bas Princen
Thai designer Decha Archjananun has made a series of vases with concrete bases to hold water and wire frames to support flower stems. More about Weight Vases by Decha Archjananun
Each bullet-sized hole piercing the skin of this museum by architects WXCA in Palmiry, Poland, represents a Polish civilian murdered there during the holocaust. More about Museum in Palmiry by WXCA
Japanese firm Kazunori Fujimoto Architect & Associates have completed a concrete house in Fukuoka that resembles a half-submerged submarine. More about House in Ropponmatsu by Kazunori Fujimoto Architect & Associates
Show RCA 2011: this modular shelving unit by Royal College of Art graduate Max Frommeld is held together with clips more commonly found on garden hoses. More about Hose Clip Shelving by Max Frommeld