Japanese architect Toyo Ito and b720 Arquitectos of Spain have completed two adjacent towers in Barcelona containing a hotel and offices. More about Porta Fira Towers by Toyo Ito and b720 Arquitectos
Steven Holl Architects of New York have won a competition to design a major urban quarter on a former industrial site beside a lake at Hangzhou, China. More about International Tourism Complex Hangzhou by Steven Holl Architects
Austrian architects Coop Himmelb(l)au are to be awarded the Sustainability Award of the 2010 MIPIM Architectural Review Future Project Awards for their tower covered in a folded metal skin, designed for the Erdberg area of Vienna. More about Town Town by Coop Himmelb(l)au
Here are some photos of the tallest building in the world, the Burj Khalifa by Chicago office Skidmore, Owings and Merrill, which opened in Dubai earlier this month. More about Burj Khalifa by SOM
Korean architect Changki Yun (Kyungam Architects Associates have sent us images of their design for an observation tower for the city of Seongnam in Korea. More about Daewon Park Observatory by Changki Yun
Work starts next spring on the European Central Bank in Frankfurt, Germany, designed by Austrian architects Coop Himmelb(l)au. More about European Central Bank by Coop Himmelb(l)au
Californian architects DRDS have been awarded first place in a competition to design a new broadcast and media centre in Busan, South Korea. More about KNN Media Center by DRDS
Beijing architects MAD have designed a skyscraper for Chongqing, China, with gardens at each level. More about Urban Forest by MAD
Paris practice LAN Architecture have designed a 142m high "mirror tower" for Beirut, Lebanon. More about 486 Mina El Hosn by LAN Architecture
Berlin practice Hackenbrioch Architekten have designed an apartment block for Lima, Peru, where sections of the facade fold open. More about Golf’s Tower by Hackenbrioch Architekten
Rotterdam architecture studio GROUP A have completed a tower block in Arnhem, the Netherlands, to be used for student housing. More about Blok 1 by GROUP A
Danish architects Bjarke Ingels Group have won an international competition to design a low-energy tower for the Shenzhen Energy Company in Shenzhen, China. More about Shenzhen International Energy Mansion by BIG
Here are the latest images of The Shard, a mixed-use tower at London Bridge in London, designed by Renzo Piano Building Workshop. More about The Shard by Renzo Piano Building Workshop
German architect Ole Scheeren of Office for Metropolitan Architecture has designed a skyscraper for Bangkok in Thailand. More about MahaNakhon by OMA
Dutch architect Ben van Berkel of UNStudio has unveiled plans for a 60-storey building with two towers in Hangzhou, China. More about Raffles City Hangzhou by UNStudio
Zaha Hadid Architects have designed a high-rise building for the center of Bucharest, Romania, which has a structural, lattice façade. More about Dorobanti Tower by Zaha Hadid Architects
New York architecture and design practice Axis Mundi have designed a conceptual alternative to French architect Jean Nouvel's design for a 73-storey tower next to the Museum of Modern Art in New York (see our previous story). More about Alternative Design for MoMA Tower at 53 West 53rd by Axis Mundi
Dutch architects Office for Metropolitan Architecture have announced the start of construction on De Rotterdam, a complex of three interconnected towers that will be the biggest building in the Netherlands. More about De Rotterdam by OMA
Steven Holl Architects have completed Linked Hybrid, a mixed-use complex of eight linked towers in Beijing, China. More about Linked Hybrid by Steven Holl Architects
Danish architects CF Møller and Norwegian practice Kristin Jarmund Arkitekter have won a competition to design three office towers in Oslo. More about Crystal Clear by CF Møller and Kristin Jarmund Arkitekter