Slideshow feature: this week marks the completion of the gigantic red ArcelorMittal Orbit sculpture at the London 2012 Olympic park. The tower is the last of the permanent structures to be completed for this summer's games, so here's a roundup of them all including sports venues by the likes of Zaha Hadid and Populous. More about Slideshow feature: London 2012 architecture
Slideshow: OMA have created a stage set for an ancient outdoor theatre in Sicily that dates back to the fifth century BC. More about Stage set at the Greek Theatre in Syracuse by OMA
Slideshow feature: infrastructure projects by German architects J Mayer H have been popping up all over Georgia in the last year - buildings completed so far include an airport, a police station, a civic centre, a border checkpoint and two roadside service stations. Here's a slideshow to bring them all together. More about Slideshow feature: J Mayer H in Georgia
Slideshow: American architect David Jameson has completed a two-storey house in Bethesda, Maryland, with white walls that look like pixellated blocks. More about NaCl by David Jameson
Slideshow: Spanish architects Miquel Mariné Núñez and César Rueda Boné have transformed an abandoned market hall in Aragon into a children's centre with a slide connecting its floors. More about Centro Infantil del Mercado by Miquel Mariné Núñez and César Rueda Boné
Slideshow: this wooden cabin in Iceland by Reykjavik studio Arkís is split into asymmetric apartments with roofs that slope in alternate directions. More about Villa Lola by Arkís
Slideshow feature: this week we've published three more of the wooden cabin-like artists' studios that Saunders Architecture of Norway have designed for the picturesque Fogo Island in Canada, so here's a slideshow rounding up all four completed so far (photographs by Bent René Synnevåg). More about Slideshow feature: Fogo Island Artists' Studios by Saunders Architecture
Slideshow: Danish architects 3XN have completed a riverside cultural centre in Norway with glass hills outlined on its facade. More about The Arch by 3XN
Slideshow: these ridged metal walls enclose the facilities of an outdoor swimming pool that Spanish firm Arquitecturia have just completed in the town of Tortosa. More about Swimming Pool in Tortosa by Arquitecturia
Slideshow: we've already featured three artists' studios from Canadian Fogo Island, making this wooden hut on legs the fourth (photographs by Bent René Synnevåg). More about Bridge Studio by Saunders Architecture
Slideshow: here's another of the six artists' studios that Norwegian firm Saunders Architecture designed for an island off the coast of Canada, this time a white angular cabin (photographs by Bent René Synnevåg). More about Squish Studio by Saunders Architecture
Slideshow: Californian architects Garcia Tamjidi have completed a studio apartment in San Francisco that looks more like an art gallery or showroom. More about Private Residence by Garcia Tamjidi
Slideshow: this small twisted tower is one of the six artists' studios that Saunders Architecture of Norway are constructing on Fogo Island off the coast of Canada (photographs by Bent René Synnevåg). More about Tower Studio by Saunders Architecture
Slideshow: a wall of wooden scales folds through the glazed facade of this house and studio that Korean architects AND designed for an artist in South Korea. More about Skinspace by AND
Slideshow: slatted wooden screens separate the three staggered tiers of this restaurant that Spanish architects Pauzarq have completed in Bilbao. More about Restaurant in Bilbao by Pauzarq
Slideshow: in our second project this week by Madrid studio Exit Architects, the designers teamed up with architect Eduardo Delgado Orusco to create this civic and cultural centre inside a former prison in Palencia, Spain. More about Civic Centre in Palencia by Exit Architects and Eduardo Delgado Orusco
Slideshow: Madrid studio Exit Architects designed this concrete sculpture museum behind the retained facade of an old house in southern Spain. More about Easter Sculpture Museum by Exit Architects
Slideshow: the cantilevered upper storeys of this house in Osaka by Japanese architect Shogo Iwata hover above a driveway. More about House in Senriby Shogo Iwata
Slideshow: a bronzed box window peers out like a periscope from the auditorium of this cathedral visitor's centre in Lund, Sweden, by architect Carmen Izquierdo. More about Domkyrkoforum byCarmen Izquierdo
Slideshow: Japanese firm Schemata Architecture Office have perched a cabin on top of a small woodland cliff in Chiba, Japan. More about Hanare by Schemata Architecture Office