The facade of this private guesthouse in northern Spain extends out to become a fence, enclosing a large tree that was already growing in the garden (+ slideshow). More about Taller Basico de Arquitectura completes House for a Man and a Tree in Spain
John Pawson's serpentine crossing over a lake in the Royal Botanic Gardens at Kew, England, is the latest addition to our alphabetical countdown of iconic contemporary bridges. More about Dezeen's A-Zdvent calendar: Sackler Crossing by John Pawson
Corrugated plastic surrounds a sunroom at one end of this timber-framed residence by Japanese architect Yoshichika Takagi, which also features a pair of house-shaped bedrooms (+ slideshow). More about Wooden home by Yoshichika Takagi features attic bedrooms and a translucent sunroom
SOM's San Francisco office has transformed an abandoned cinema into a multipurpose performance and community venue for the American Conservatory Theater, a prominent arts organisation in the Bay Area (+ slideshow). More about SOM recasts old San Francisco movie house for new role as a nonprofit theatre
Officials in Massachusetts have announced plans for a pair of new museums designed by New York studio Gluckman Tang in the state's northwestern region (+ slideshow). More about Gluckman Tang designs museums for art and model trains in western Massachusetts
Opinion: there are concrete tactics that architecture can use to make people feel mentally and socially safe, says Aaron Betsky, but the real question is how we apply them to public buildings and spaces. More about "We face calls for safe houses, safe communities and safe spaces"
The latest addition to our Christmas countdown of bridges is Thomas Heatherwick's Rolling Bridge in west London, which curls up like a caterpillar to allow boats to pass by. More about Dezeen's A-Zdvent calendar: Rolling Bridge by Thomas Heatherwick
Architecture studio Encore Heureux has built a pavilion outside Paris' city hall featuring a facade made out of reclaimed doors and insulation recycled from an old supermarket roof (+ slideshow). More about Encore Heureux uses recycled materials to build Circular Pavilion in Paris
Designer Thomas Heatherwick has won planning permission to convert a Victorian coal yard in London's King's Cross into a canal-side shopping destination. More about Heatherwick gets go ahead for canal-side shopping centre in London's King's Cross
Paint was thrown at the walls of this concrete music, drama and dance school in eastern France by Dominique Coulon & Associés, creating a veined pattern based on the paintings of abstract artist Jackson Pollock (+ slideshow). More about Splattered paintwork inspired by Jackson Pollock covers concrete music school in France
A patio-like corridor surrounds the ground-floor rooms of this house by Takeru Shoji Architects, replicating a traditional space in Japanese farmhouses known as a doma (+ slideshow). More about Go Bang House by Takeru Shoji Architects references traditional Japanese farmhouses
A large white box is raised on stilts to create the upper floor of this house in Japan, sheltering a smaller ground floor and entrance from the heavy snowfalls that Hokkaido Prefecture experiences in winter (+ slideshow). More about Top-heavy house by Archi LAB designed to minimise snow buildup
Spanish architect Santiago Calatrava's science museum with a skeletal roof that projects over a public plaza has opened in Rio de Janeiro (+ slideshow). More about Museum of Tomorrow by Santiago Calatrava opens in Rio de Janeiro
A 101-metre slide winds down through this coiling structure by Fránek Architects, perched on a mountain in the Czech Republic (+ slideshow). More about Fránek Architects' mountainside Sky Walk loops up around a giant slide
The letter Q in the Dezeen A-Zdvent calendar is another design by Spanish architect and engineer Santiago Calatrava: the fourth bridge to be built in Venice since the 16th century. More about Dezeen's A-Zdvent calendar: Quarto Ponte sul Canal Grande by Santiago Calatrava
The Royal College of Art has announced Adrian Lahoud will be the new dean of the school's architecture department, replacing Alex de Rijke. More about Royal College of Art appoints Adrian Lahoud as dean of architecture
Canadian firm Bourgeois Lechasseur Architects has completed a gabled family home in rural Quebec featuring a facade of cedar tiles (+ slideshow). More about Woodland Quebec home by Bourgeois Lechasseur features a facade of wooden tiles
Batons of charred timber and layers of turf help this pair of holiday cottages by PK Arkitektar settle into the rugged landscape of south-west Iceland (+ slideshow). More about Rural Icelandic cottages by PK Arkitektar have turf roofs and burnt timber cladding
Columns and struts modelled on tree trunks and branches frame this extension to a home in Ghent, designed by Atelier Vens Vanbelle to feel like a continuation of the garden. More about Tree-like columns support roof of Ghent house extension by Atelier Vens Vanbelle
LA-based architect Clive Wilkinson has drawn up conceptual plans for a giant shared office that would hover above London, enabling people to simply walk upstairs to their mobile workplace. More about Clive Wilkinson suggests "carpet bombing" London with a co-working office in the sky