This sofa by New Zealand design graduate Marvin Reber can be taken apart and reassembled to form play apparatus for children (+ slideshow). More about Marvin Reber's Inclusion Couch dismantles to create an indoor playground
A sauna is housed within this wooden hut by Andre Tchelistcheff Architects, which perches on a grassy knoll overlooking the Hudson River and Catskill Mountains in upstate New York (+ slideshow). More about Wooden cabin by Andre Tchelistcheff Architects houses a sauna in the Hudson Valley
A rainforest populated with orangutans, a giant chess board and floating jellyfish are sculpted from the snow and ice used to create the rooms inside this year's Icehotel in Jukkasjärvi, Sweden (+ slideshow). More about Icehotel's 25th edition includes a square vortex suite
Architects João Quintela and Tim Simon have built a pavilion inside a climbing centre in Lisbon, providing a cafe and reception space that visitors can also scramble over (+ slideshow). More about Visitors to Lisbon's Vertigo Climbing Center can clamber on the cafe
Children's bedrooms and play spaces take over the partially exposed subterranean floor of this house completed by Scandinavian firm CF Møller on the edge of a wood in Aarhus, Denmark (+ slideshow). More about CF Møller's Villa R features a sunken storey for the clients' children
News: the viewing terraces opened today at the top of Rafael Viñoly's so-called Walkie Talkie skyscraper in London, pictured in these exclusive images by photographer Edmund Sumner (+ slideshow). More about Sky Garden opens at the top of Rafael Viñoly's Walkie Talkie
News: a team led by 64North Architecture has won a competition to design a pedestrian and cyclist bridge connecting the San Francisco Bay waterfront and Palo Alto – home to some of the world's leading technology companies. More about Palo Alto footbridge will span the 14 lanes of San Francisco's 101 freeway
Italian designer Martino Gamper has created a "homage to the humble corner" in the shop windows of fashion house Prada (+ slideshow). More about Martino Gamper plays with perspective for Prada window installations
Japanese studio Alphaville raised the base of this Osaka house up on crooked stilts, revealing the complex arrangement of rooms, bridges and lightwells contained within (+ slideshow). More about Alphaville's Dig In the Sky house is made up of three blocks connected by bridges
French studio CUT Architectures has revamped a 1960s community centre in a Paris suburb, adding perforated golden cladding that references the original yellow-painted facades (+ slideshow). More about CUT Architectures adds golden walls to 1960s community centre
Scandinavian designers Andreas Engesvik and Jens Fager have created a collection of lightweight pressed-felt room dividers from recycled bottles for office furniture brand Edsbyn (+ slideshow). More about Edsbyn's office partitions are made from recycled plastic bottles
A balcony shaded by steel fins projects from the upper storey of this house in Northern Ireland, which architect and farmer Patrick Bradley built using four used shipping containers (+ slideshow). More about Grillagh Water House by Patrick Bradley is made up of four stacked shipping containers
Bedrooms the size of a single mattress are slotted two-high into the walls of this wooden guesthouse in Japan by Alphaville, which takes its cues from capsule hotels (+ slideshow). More about Ladders lead to capsule-sized bedrooms in Koyasan Guesthouse by Alphaville
Spindly orange walkways are raised above the waters and meadows of this wetland park designed by landscape architects Turenscape on a neglected river in China (+ slideshow). More about Turenscape transforms "lifeless ditch" into wetland park with meandering causeways
The timber walls of this house outside Prague have been partially charred, intended as a reference to the clients' love of cooking (+ slideshow). More about Mjölk Architekti's Carbon house features a burnt wood exterior
Gardens on the terraced roofs of this brick office building in northern India were designed by SPA Design to reference an ancient Indian well and the legendary Hanging Gardens of Babylon (+ slideshow). More about Indian office block by SPA Design features brick arches and stepped rooftop gardens
French design studio Constance Guisset has created a homely interior for the lobby of the Accor hotel group's Suite Novotel in The Hague (+ slideshow). More about Constance Guisset's furniture and lighting populates Novotel hotel lobby
This square building with a hollow centre appears to balance over a cluster of hills, creating offices and a central plaza for a business incubator unit in a rural Portuguese technology park (+ slideshow). More about Elevated office building by Jorge Mealha folds around secluded plaza at technology park
Divooe Zein Architects has installed an arced structure covered in nets to shelter a woodland glade near the Taiwanese capital, Taipei (+ slideshow). More about Woodland greenhouse by Divooe Zein Architects provides shelter for flora and fauna
Small-scale fittings, blackboards walls and round toilet cubicles are incorporated into this kindergarten in Japan, designed by architecture studios Hibino Sekkei and Youji no Shiro around a garden playground (+ slideshow). More about Light-filled classrooms surround a courtyard garden at DS Nursery in Japan