The roof of this Stockholm house by Streetmonkey Architects turns into a ramp for children to sled on when it snows (+ slideshow). More about Pulkabacken house has a sloping roof that doubles as a sledding hill
BIG has unveiled designs for Two World Trade Center, confirming that the skyscraper's original architect, Foster + Partners, has been ousted (+ slideshow). More about BIG unveils replacement for Foster's Two World Trade Center design
Competition: Dezeen has paired up with New York's Metropolitan Museum of Art to offer readers the chance to win one of five pairs of tickets to an intimate talk with Chile-based architects Mauricio Pezo and Sofa von Ellrichshausen. More about Competition: win tickets to Pezo von Ellrichshausen's talk at The Met
Two house-shaped rooms project out from the facade of this three-storey residence by SoNo Arhitekti, which nestles into a hillside near an Austrian Alpine village (+ slideshow). More about Mountain View House nestles against a hillside in the Austrian Alps
The trio of stacked blocks that make up this Virginia residence by Höweler + Yoon Architecture are arranged in a bridge-like formation, providing three generations of a family with separate living spaces (+ slideshow). More about Höweler + Yoon's Bridge House accommodates three generations of a family
New York designer Karim Rashid has asked his Facebook fans to select their preferred option from four facades for a building in the city's SoHo district. More about Karim Rashid asks Facebook followers to pick facade for NY building
Dutch studio Kaan Architecten has added a medical research centre to a Rotterdam hospital, featuring triangular skylights, spiral staircases and a 35-metre-high bookcase (+ movie). More about Kaan Architecten adds study centre to a hospital part-designed by Jean Prouvé
Prefabricated modules of cross-laminated timber were "plugged in like Lego pieces" to build this eight-storey apartment block in Finland – one of the first examples of its type in the world (+ slideshow). More about OOPEAA completes Finland's first high-rise wooden apartment building
Architecture studio Overland Partners has transformed an old warehouse to create itself a new studio and office building in the heart of the arts district of San Antonio, Texas (+ slideshow). More about Overland Partners transforms a San Antonio warehouse into a lofty studio
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 about McDonald's restaurant by Mei Architects boasts a golden facade and a spiral staircase
This Paris nursery by French architect Samuel Delmas looks like a pile of stacked boxes, featuring a facade of aluminium louvres and colourful enamelled glass (+ slideshow). More about Parisian nursery by Samuel Delmas consists of a pile of irregularly stacked boxes
The Västerås Travel Center by Bjarke Ingel's firm BIG will bring together trains, buses, taxis and bicycles as part of an ambitious redevelopment plan for the city's main railway station (+ slideshow). More about BIG unveils transport hub for one of Sweden's biggest cities
A cookery school is housed behind the glazed facade of this contemporary shed, recently completed by Satellite Architects at the headquarters of British TV programme River Cottage (+ slideshow). More about Satellite Architects adds a new cookery school to the River Cottage headquarters
This collection of angular asphalt-clad roof extensions provide elevated sleeping platforms, a study and a pair of funnel-shaped skylights for a home in eastern Denmark. More about Asphalt-clad roof pods by Leth & Gori create new rooms on top of a Danish bungalow
These new shots by photography duo Hufton + Crow depict the Long Museum West Bund – a contemporary art gallery in Shanghai built around an industrial structure once used for unloading huge quantities of coal (+ slideshow). More about Shanghai art museum by Atelier Deshaus brings together vaulted columns and an industrial relic
This timber-clad villa by Stockholm studio The Common Office stands between the trees of a steep rocky slope in the Swedish countryside (+ slideshow). More about Villa Altona by The Common Office fits around the trees of a Swedish woodland hill
A concrete floor merges with seating inside and outside this rusted steel and glass extension to a Victorian-style house in west London, designed by local architecture studio McLaren Excell (+ slideshow). More about McLaren Excell adds a weathered-steel and concrete extension to a London house
The living and dining rooms of this house overlooking a river valley in Connecticut, USA, are contained in a timber-clad box raised up by concrete buttresses (+ slideshow). More about Bridge House by Joeb Moore & Partners straddles a site on the edge of a valley
Strips of black-stained timber give a charred appearance to this extension to a north-west London flat, designed by Fraher Architects to create a bigger kitchen for a client who loves to cook (+ slideshow). More about Blackened timber extension by Fraher Architects provides a new kitchen for a keen cook
Architecture studio Cadaval & Solà-Morales has transformed a traditional white brick house in Mexico City into an apartment complex, with the addition of a row of black penthouses (+ slideshow). More about Cadaval & Solà-Morales installs angular black penthouses during renovation of a 1920s building