Towering steel mushrooms create a layered canopy over the roof of this glazed office block in Tbilisi, Georgia, by Italian architects Massimiliano and Doriana Fuksas (+ slideshow). More about Tbilisi Public Service Hall by Massimiliano and Doriana Fuksas
News: Foster + Partners has won a competition to design a 200-metre skyscraper for collapsed investment bank Lehman Brothers Holdings and partner L&L Holding Company on Park Avenue in New York. More about Foster + Partners to build Park Avenue skyscraper for Lehman Brothers
Spanish design studio Masquespacio have turned a dilapidated Valencia art gallery into an office for a law firm, featuring clusters of empty picture frames on the walls (+ slideshow). More about Zapata y Herrera lawyers' office by Masquespacio
Spanish architect Alberto Campo Baeza has concealed an office block with walls made entirely of glass behind a sandstone enclosure in the Spanish city of Zamora (+ slideshow). More about Offices for Junta de Castilla y León by Alberto Campo Baeza
Russian studio Za Bor Architects have furnished the new St. Petersburg offices of internet company Yandex like the desktop of a computer, with pixellated backgrounds and huge icons (+ slideshow). More about Yandex Saint Petersburg Office II by Za Bor Architects
Dezeen Wire: architect Frank Gehry (pictured above, left) is designing the new campus for social media giant Facebook, which claims it will be the largest open-plan office in the world. More about Frank Gehry designs new Facebook headquarters
The entrance lobby at AOL's Palo Alto headquarters looks like a skate park (+ slideshow). More about 395 Page Mill Road by Studio O+A
These offices for the Dutch Football Association in Zeist by interior designers Hollandse Nieuwe are concealed behind the classical facade of a reconstructed mansion (+ slideshow). More about Villa Sonnehaert by Hollandse Nieuwe
This renovated office in China by Vector Architects features plant-covered walls and a bright orange glass meeting room (+ slideshow). More about Taoyuanju Office by Vector Architects
Zaha Hadid has completed a streamlined concrete and glass building for three government departments in Montpellier, France (+ slideshow). More about Pierres Vives by Zaha Hadid
Dutch architecture firm UNStudio has designed a skyscraper for Singapore that looks like a cactus. More about V on Shenton by UNStudio
Google's new London headquarters by designers Penson features Union Jack flags, balcony gardens and allotments where staff can grow vegetables (+ slideshow). More about Google Super HQ by Penson
Florida-based firm Oppenheim Architecture + Design and Swiss studio Huesler Architekten have created offices for themselves in an eighteenth century building in northern Switzerland and constructed a new house in the garden behind (+ slideshow). More about Kirchplatz Office and Residence by Oppenheim and Huesler Architekten
Modular offices open out to terraces on each floor of this building in Barcelona by Japanese architect Arata Isozaki (+ slideshow with photographs by Filippo Poli). More about D38 Zona Franca Office by Arata Isozaki
The OMA-designed headquarters for the Rothschild Bank in London is one of the six buildings shortlisted for the 2012 Stirling Prize (+ slideshow). More about New Court, Rothschild Bank headquarters by OMA with Allies and Morrison
A pegboard wall with customised pockets provides flexible storage at this tiny Soho office by London designers Studio Swine. More about Office for Emu Films by Studio Swine
Recycled wooden boards and pallets are stacked up as furniture at this office in Kraków by Polish designers Morpho Studio (+ slideshow). More about Pride&Glory Interactive office by Morpho Studio
Californian architects amphibianArc have designed a shape-shifting "transformer building" for a Chinese machinery company, with a facade that flaps like the wings of a huge insect (+ movie). More about Zoomlion Headquarters Exhibition Center by amphibianArc
QR codes cover the exterior of this former mustard laboratory in Dijon that Dutch architects MVRDV have converted into a call centre (+ slideshow). More about TeleTech call centre by MVRDV
Movie: plants take over the offices of London's commercial district Canary Wharf in this movie by Oxford Brookes architecture graduate Richard Black. More about Movie: The Symbiotic Office by Richard Black