Swiss artist Felice Varini has painted curved strips onto buildings and streets in Hasselt that create a picture of overlapping rings when viewed from a single vantage point in the Belgian city. More
This London building appears to have been turned on its head, but it's actually an installation created by Hackney artist Alex Chinneck. More
A smooth, curved concrete shell forms the exterior of this art studio in Boeotia, central Greece by Athens studio A31 Architecture (+ slideshow). More
Contemporary artists Michael Elmgreen and Ingar Dragset have turned five galleries at the V&A museum in London into the apartment of a fictional architect for an exhibition that opens next month. More
A twisted entanglement of tree branches appears to grow organically from the beams of Paris' Palais de Tokyo museum in this installation by Brazilian artist Henrique Oliveira (+ slideshow). More
Hackney artist Alex Chinneck has created a wall that melts in the sun as part of his research for a project to build a melting house. More
News: Hackney studio Sample and Hold 3D-scanned a living horse for a new sculpture by Turner Prize-winning artist Mark Wallinger. More
Competition: Dezeen is giving readers the chance to win one of five copies of a limited edition digital artwork by Japanese artist Yoko Ono. More
British artist Jeremy Hutchison will open a pop-up shop selling useless objects at a London gallery this December. More
Visitors can play in the rain without getting wet in this installation by interactive designers rAndom International at the Barbican in London (+ slideshow). More
French artists Christophe Berdaguer and Marie Péjus have converted an old house in France into a visitor centre by giving it a ghostly cloak of polystyrene and paint. More
German artist Hendrik Beikirch has painted a 70-metre-high mural of a fisherman a few blocks away from Daniel Libeskind's Haeundae I'Park skyscrapers in Busan, South Korea (+ slideshow). More
An exhibition of paintings, furniture and installations by Zaha Hadid goes on show at the Ivorypress Space gallery in Madrid this September. More
This sprinkler by Dutch artist Edwin Deen sprays jets of coloured water to turn a room into a rainbow (+ slideshow + movie). More
Narrow slits provide entrances to this circular pavilion by Belgian artist Wesley Meuris outside the Flemish town of Borgloon. More
French artist Etienne Gros has nipped and tucked blocks of soft foam to make squidgy nude sculptures. More
Hackney-based artist Alex Chinneck has fitted identically smashed windows into a derelict factory just a mile away from the Olympic Stadium (+ slideshow). More
Icelandic artist Olafur Eliasson has made these small solar-powered lamps for people who have limited access to reliable energy – almost a quarter of the world's population (+ movie). More
Artist Esther Stocker has built a disjointed grid of black blocks across the floor, walls and ceiling of Z33 – House for Contemporary Art in Hasselt, Belgium. More
London designer Dominic Wilcox has expanded his series of sculptures featuring tiny characters balanced on watch hands with three new scenes tackling protest and surveillance. More