

Spiral lookout tower gives views of the mountains in Shenzhen
A spiral staircase twists 810 degrees to form a viewpoint designed by architecture studio Doarchi to look out over the mountains close to Shenzhen. More
A spiral staircase twists 810 degrees to form a viewpoint designed by architecture studio Doarchi to look out over the mountains close to Shenzhen. More
A spiral staircase breaks the linear geometry in a Japanese house designed by Kazunori Fujimoto Architects & Associates, which is made nearly entirely of concrete. More
A spiral staircase made of concrete rises through the centre of an open-plan office designed by architecture studio Hildebrand in Steinhausen, Switzerland. More
Snøhetta has revealed visuals for a major new opera house in Shanghai, featuring a spiralling stepped roof that will connect the upper levels of the building with a riverside plaza. More
Vine Architecture Studio has refurbished a rooftop apartment in east London, with features including a yellow spiral staircase and generous rooflights that fill the interior with daylight. More
MAD has revealed visuals of a "theatrical" spiral staircase set to create a panoramic viewing platform for a historic warehouse on Rotterdam's waterfront. More
Dezeen promotion: the 10-tonne copper spiral staircase rising through an atrium of CEBRA's Experimentarium in Denmark is lit from above by Velux skylights. More
Black and white stairways splice and spiral through the Studio Libeskind-designed MO Museum of modern art in Vilnius, Lithuania. 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
Portuguese studio Promontorio has transformed a 1980s office building in Lisbon into a high-tech headquarters featuring a spiralling concrete staircase. More
Balint Alovits' photography series Time Machine features architectural staircases in Bauhaus and art deco-style buildings in Budapest, Hungary. More
Danish studio CEBRA has redesigned a science centre in Copenhagen, adding a shimmering copper-clad staircase that represents the structure of a DNA strand. More
A concrete staircase spirals between the austere concrete floors of this house designed by Kazunori Fujimoto Architect & Associates for a seaside spot in Japan's Hiroshima Prefecture. More
Hidden behind a bookcase in a secret room, a fireman's pole offers a fast escape route from the top floor of this Berlin home by local studio NOWlab (+ slideshow). More
Graduate shows 2015: a pair of Royal College of Art graduates have created a new way to climb trees – strapping steps around the trunk to form a spiral staircase up to out-of-reach branches. More
This McDonald's restaurant featuring a perforated golden facade and a grand spiral staircase was designed by Dutch firm Mei Architects to replace "the ugliest building in Rotterdam" (+ slideshow). More
Bored with the dismal view from the office window, Polish studio Zalewski Architecture envisioned a grassy suspended walkway that would allow them to take a stroll without leaving the building. More
A metal staircase twists though a triangular well in one corner of this six-sided timber cabin by ALT Architekti, which is raised on stilts over a hillside in Central Bohemia (+ slideshow). More
Two curving staircases encircle the exterior of this wedding chapel by Tokyo-based architect Hiroshi Nakamura, meeting at a rooftop platform that overlooks the Hiroshima coastline (+ slideshow). More
A spiral staircase rises through the trough-shaped floors of this concrete residence in Japan by local studio Takeshi Hosaka Architects (+ slideshow). More