Ta đi Ôtô mini-skyscraper on a tricycle by Bureau A
Swiss architecture firm Bureau A created a seven-storey mobile performance space and street kitchen, mounted it on a tricycle and rode it round the streets of Hanoi in Vietnam (+ movie). More
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National Ecology Center botanic greenhouses by Grimshaw and Samoo
Architecture firm Grimshaw has completed an ecological park in South Korea where tropical plants, waterfalls and penguins are housed within huge glass and steel biomes (+ slideshow). More
Tianzhoushan Tea House by Archiplein
The folded concrete walls of this lakeside visitor centre in China's Anhui Province were designed by architects Archiplein to mimic the uneven surfaces of the surrounding mountains (+ slideshow). More
Cais Bagaúste by Belém Lima Arquitectos
Portuguese studio Belém Lima Arquitectos has perched a pair of gabled cabins on the edge of a dam in northern Portugal to provide a public boathouse and cafe (+ slideshow). More
Shadow City by Izabela Boloz
Building-shaped cut-outs cast the shadow of a city onto a wall in this Copenhagen installation by Polish designer Izabela Boloz (+ slideshow + movie). More
Fontys Sports College by Mecanoo
Here's another project from Dutch firm Mecanoo: a sports college in Eindhoven featuring a black brick exterior with perforations in the shape of athletes (+ slideshow). More
Easehouse for Singeldingen Foundation by Lagado Architects
Dutch firm Lagado Architects have designed a temporary public toilet block with wide open sections in the roof so users can sit on the toilet and look up into the sky (+ slideshow). More
Open House by Matthew Mazzotta
This house in Alabama folds open to provide seating for an open-air performance space (+ movie). More
OMA lands Miami Beach Convention Center commission
News: Dutch firm OMA has seen off competition from Danish studio BIG to land the high-profile commission to renovate Miami Beach Convention Center, home to the annual Art Basel/Miami and Design Miami trade fairs. More
Four architects reimagine New York's Penn Station
News: SHoP Architects and SOM are among four firms putting forward their visions for the future of New York's Pennsylvania Station and Madison Square Garden (+ slideshow). More
Brazil opens first solar-powered stadium ahead of 2014 World Cup
News: a 1960s football stadium in Brazil has become the first of several in the country to be equipped with a solar-powered roof in preparation for next year's FIFA World Cup. More
Miami Beach Convention Center by OMA
Dutch firm OMA's proposal to place a hotel on top of the Miami Beach Convention Center is going head-to-head with Danish firm BIG's plan for the site (+ slideshow + movie). More
Miami Beach Convention Center by BIG
A large public square is at the heart of Danish firm BIG's proposed overhaul of Miami Beach Convention Center, home to the annual Art Basel/Miami and Design Miami trade fairs (+ slideshow + movie). More
Construction begins on Bordeaux stadium by Herzog & de Meuron
News: work has started on a football stadium in Bordeaux, France, by Swiss architects Herzog & de Meuron. More
BIG and RAA to design Lego visitor centre in Denmark
News: Danish studio Bjarke Ingels Group (BIG) and American firm Ralph Appelbaum Associates (RAA) have been chosen to design a Lego visitor experience centre in Billund, Denmark. More
Skidome Denmark by CEBRA
Danish architecture studio CEBRA has revealed a proposal for a snowflake-shaped ski dome that would be the biggest in the world, with three kilometres of slopes arching over a river in the Danish city of Randers. More
Fala Park by PL.architekci
Stray balls aren't a problem on the rooftop tennis court of this sports centre in western Poland by PL.architekci, thanks to the cage that covers the building (+ slideshow). More
Clapham Library by Studio Egret West
This library by London architects Studio Egret West looks like a row of books (+ slideshow). More
Special feature: Spanish public architecture
Slideshow: Spain's economy may be in tatters but that hasn't stopped it opening a raft of impressive public buildings in towns, cities and even remote villages over the past year. Amid bailouts and claims that extravagant architectural projects have helped cause the problems, here's a celebration of more modest projects from Spain such as museums, town halls, markets, auditoriums, bridges and even railway control centres featured on Dezeen recently. More
Teruel-zilla! by Mi5 Arquitectos, and PKMN Architectures
Madrid studios Mi5 Arquitectos and PKMN Architectures have built a half-submerged culture and leisure centre in the middle of a public square in Teruel, Spain (+ slideshow). More