Brazilian firms Hype Studio and Santini & Rocha Arquitetos have added a lightweight roof with a leaf-shaped structure to the Beira-Rio Stadium in the city of Porto Alegre ahead of the 2014 FIFA World Cup, which kicks off on 12 June (+ slideshow). More
News: Herzog & de Meuron has completed an open-air gymnasium in Natal, Brazil – the flagship project for the Swiss firm's regeneration of the Mãe Luiza neighbourhood (photos by Leonardo Finotti + slideshow). More
Patterns referencing the footwork of figure skaters decorate the underside of a roof sheltering this ice rink in Brooklyn, New York, designed by American firm Tod Williams Billie Tsien Architects. More
This temporary open-air cinema in Jakarta, designed by Indonesian studio Csutoras & Liando, was erected in just 10 days using scaffolding, plywood and industrial fabric (+ slideshow). More
This reflective metal-clad box containing a restaurant rises like a periscope above a small shopping complex in São Paulo by French-Brazilian architecture office Triptyque (+ slideshow). More
These photographs show the newly converted aquatics centre by Zaha Hadid Architects for the London 2012 Olympics, which will open to the public next week without the controversial wings that housed additional seating during the Games. More
Belgian studio Atelier Tom Vanhee has converted a former school building in the village of Woesten into a community centre and added a white gabled extension that appears to be sliding out of the original brick facade (+ slideshow). More
Belgian studio Atelier Tom Vanhee has renovated and extended the brick buildings of a community centre in the village of Westvleteren using a contrasting contemporary brick (+ slideshow). More
London architecture office Make has designed a portable prefabricated kiosk with a folded aluminium shell that opens and closes like a paper fan (+ movie). More
Portuguese architect Álvaro Fernandes Andrade has completed a training facility for Olympic-standard rowers where angular white volumes snake across a tiered landscape of grassy slopes and dry-stone walls (+ slideshow). More
Sweeping lengths of concrete create curving canopies around the perimeter of this golf clubhouse on South Korea's Changseon Island by Seoul architecture firm Mass Studies (+ slideshow). More
The walls of this six-sided community centre in a suburb of Shanghai by Scenic Architecture Office project outwards from a central courtyard and are connected by an angular roof (+ slideshow). More
A facade of translucent plastic pillows can be pumped up to alter lighting and temperature inside this domed tropical greenhouse in Aarhus by Danish firm CF Møller (+ slideshow). More
An angular steel canopy covered in plants wraps around this refurbished youth and community centre in the Sydney suburb of Waterloo by Australian architects Collins and Turner (+ slideshow). More
Bands of light shine through the perforated metal facade of this sports hall by French studio Ateliers O-S Architectes in north-west Paris (+ slideshow). More
Faceted concrete blocks protrude from one side of this sports hall in Croatia, while its bumpy southern and western walls were made by casting concrete panels over a bed of stones (+ slideshow). More
News: wellness entrepreneur Nell Waters is attempting to raise £146,000 on crowdfunding website Kickstarter to build a prototypal ecological urban bathhouse from shipping containers in San Francisco. More
Curved walls made from sun-bleached timber slats screen the exterior of this sports centre by Explorations Architecture in the French commune of Arpajon, near Paris (+ slideshow). More
Australian studio Tony Hobba Architects sourced weathered steel piles that had previously been used as flood barriers to build this kiosk beside a surfers' beach in Torquay, Australia (+ slideshow). More
Dutch firm MVRDV has unveiled images of a tennis clubhouse with seating on the roof, which is to begin construction later this month in Amsterdam (+ slideshow). More