News: architecture firm dRMM will install 20 interlocking wooden staircases outside St Paul's Cathedral for the London Design Festival in September. More »

News: the two temporary wing-like seating stands have been removed from Zaha Hadid's Aquatics Centre at the London 2012 Olympic Park, meaning the building can be seen for the first time as it was originally designed. More »

News: Barcelona officials are outraged over plans to construct a 300-metre "space hotel" - complete with a zero-gravity spa and vertical wind tunnel - on an artificial island off the coast of the city. More »

News: developers have unveiled images of Zaha Hadid Architects' proposed 60-storey residential skyscraper in Miami, USA (+ slideshow). More »

News: British firm Wilkinson Eyre Architects has won a competition to design a $1.5 billion hotel skyscraper on the harbourfront in Sydney, Australia. More »

News: work has begun on the OMA-designed headquarters of Denmark's national centre for architecture in Copenhagen. More »

News: British inventor James Dyson has donated £4 million towards building a new cancer centre in Bath, UK, based on the principles underlying his successful redesign of a neonatal ward at the same hospital. More »

News: Zaha Hadid Architects has won a competition to design a metro station for Riyadh, the Saudi Arabian capital. More »

News: British firm Foster + Partners has unveiled plans for two residential skyscrapers as part of a mixed-use development in north London. More »

News: the architectural principles behind the Prince of Wales' controversial Poundbury development (above) will be exported to Bahrain in a move that has angered human rights campaigners. More »

News: Swiss firm Herzog & de Meuron has been granted planning permission for a school of government and public policy at the University of Oxford, UK. More »

News: One World Trade Center in New York has become the world's third-tallest building after topping out at a height of 541 metres. More »

News: the Museum of Modern Art in New York is to reconsider its decision to demolish the former American Folk Art Museum next door following an outcry from architects, conservationists and critics. More »

News: blueprints for the world's first 3D-printed gun have been taken offline at the request of the US government. More »