A rounded, glazed welcome centre is among the enhancements made by US firms Machado Silvetti Architects and Fentress Architects to the Gio Ponti-designed Denver Art Museum, which opened in 1971. More
Moscow's chief architect Sergey Kuznetsov has completed a pipe-shaped cabin, constructed like the hull of a ship and balanced on the edge of a slope in Russia's Nikola-Lenivets Art Park. More
A perforated metal facade screens a round school in Denmark designed by Lundgaard & Tranberg Arkitekter around a central triple-height gym. More
Ribbons of wood wrap around The Exchange by Kengo Kuma, which has opened in Darling Square, Sydney, Australia. More
American firm Mack Scogin Merrill Elam Architects has refurbished a round, mid-century dwelling that rotates 360 degrees and has created a pool house that doubles as guest quarters. More
The Wuxi Taihu Show Theatre, which is wrapped in a steel structure designed to look like a bamboo forest, has opened in China. More
A spiral cafe with a rooftop garden in Chelsea, London, by architecture studio NEX has curved windows that can retract fully when the weather is good. More
The cylindrical St Andrews Beach House in Victoria, Australia, designed by Austin Maynard Architects does away with unnecessary circulation space to create a laid-back communal atmosphere. More
Shanghai-based studio ATAH's arts centre in the Chinese city of Shaoxing is a glazed cylinder intersected by a spiralling walkway that doubles as a stage. More
New visualisations have been released of the 90-metre-high tower Herzog & de Meuron is proposing in Stockholm, to replace a 1930s gasholder. More
Tiered balconies clad in charred timber dowels enclose restaurants designed "in the round" to provide views across Sydney's redeveloped Barangaroo South precinct. More
Dutch architecture firm Mecanoo has transformed a gasworks in the city of Hilversum into a residential neighbourhood, featuring cylindrical apartment buildings intended to resemble the now-dismantled gas holders. More
Design studio RB Systems is following the trend for super-slender towers in New York with a speculative proposal for a 400-metre skyscraper in Midtown Manhattan, which would be supported by spiralling steel cables rather than columns. More
WilkinsonEyre has completed its transformation of a trio of Victorian gas holder frames at London's King's Cross into luxury apartments with interiors by Jonathan Tuckey Design. More
Landscaped public gardens will surround a new glass residential tower by Swiss firm Herzog & de Meuron, providing a new space for Stockholm's residents to relax and enjoy nature. More
Windows appear to have been carved out of the curving walls of this cylindrical church in the Czech Republic, designed by Brno-based studio Atelier Štěpán. More
Slender metal columns support the offset concrete roof of this cylindrical office block designed by Local Architecture for the International Motorcycling Federation on the outskirts of Geneva. More
Perforated-aluminium screens zigzag around the walls of this cylindrical arts museum in Shanghai, which was designed by Wutopia Lab and features a 1970s-style rockery. More
A Victorian gas holder has been converted into a park with a circular lawn and a polished steel pavilion as part of the ongoing redevelopment of King's Cross, London. More
The cylindrical shape of this university building on the outskirts of Dutch town Wageningen is designed by BDG Architects to optimise the usable floor space inside and reduce energy loss through the facade (+ slideshow). More
