Belgian architect Vincent Callebaut has developed plans for a city of futuristic ocean buildings made from 3D-printed plastic waste which extend 1,000 metres below the water's surface (+ slideshow). More about Vincent Callebaut proposes underwater "oceanscrapers" made from 3D-printed rubbish
The final addition to our alphabetical countdown of contemporary bridges is Zaha Hadid's Zaragoza Bridge Pavilion, which formed the gateway to the World Expo in 2008. More about Dezeen's A-Zdvent calendar: Zaragoza Bridge Pavilion by Zaha Hadid
London studio Archmongers has remodelled and extended a 1960s terrace house in the city, refreshing the facade with glazed tiles similar to those found on London's tube stations (+ slideshow). More about Archmongers revamps 1960s London terrace using glazed tiles and an elaborate staircase
Extra Moooi: in this movie filmed in Amsterdam, Moooi co-founder Marcel Wanders discusses the woven carbon-fibre chair he designed with Bertjan Pot, which the Dutch brand relaunched this year as a bar stool. More about Moooi’s bar stool version of iconic Carbon Chair is "super light and super strong"
Our second featured bridge of the day is the Yangtze River Bridge in Wushan, China, which is one of the longest tied-arch bridges in the world. More about Yangtze River Bridge in Wushan, China
Taiwanese designer Yen-Wen Tseng has used simple geometric shapes to create stationery that looks like a set of miniature concrete sculptures. More about Merge by Yen-Wen Tseng is a sculptural concrete stationery set
It's Christmas eve, which means today we're featuring three projects in our bridge-themed A-Zdvent calendar! First up is the Xiying Rainbow Bridge in Taiwan – a simple bridge by day that transforms into a rainbow by night. More about Dezeen's A-Zdvent calendar: Xiying Rainbow Bridge
Here is a selection of some of the best Christmas cards we've received from architects, designers and brands this year, including a winter scene by MVRDV that shows Father Christmas lounging on top of the studio's sofa-like clubhouse in Amsterdam. More about Designer Christmas cards 2015
Built near the heart of Melbourne's historic brick-making district, this block of apartments and shops has walls of black bricks that are arranged to create perforated patterns and provide privacy for residents (+ slideshow). More about Ola Architecture Studio's housing block in Melbourne designed as an "ode to brick"
Wülser Bechtel Architekten has completed a male hair groomers in Zurich featuring a pair of sculptural mirrors and a floor that reveals traces of the building's history (+ slideshow). More about Sculptural mirrors frame spaces in Zurich barbershop by Wülser Bechtel Architekten
SHoP Architects has partnered with two nonprofit organisations to rebuild 50 public schools in areas of Nepal that were devastated by the April 2015 earthquake (+ slideshow). More about SHoP designs schools for earthquake-ravaged areas of Nepal
A trio of wavy bridges created by Dutch landscape firm West 8 in Toronto provide the letter W in our Christmas countdown of iconic contemporary bridges. More about Dezeen's A-Zdvent calendar: WaveDecks by West 8
Property developer Landream has unveiled designs by Zaha Hadid Architects for a 54-storey skyscraper in Melbourne, featuring a volume broken up into four curved segments. More about Zaha Hadid plans Melbourne skyscraper made up of stacked "vases"
Over 400 houses from all over the world have featured on Dezeen in the past year. Architecture editor Amy Frearson picks her top 10, including a transparent home in rural Japan, a top-heavy residence beside a Chilean lagoon, and a concrete property built behind crumbling walls of volcanic stone (+ slideshow). More about Dezeen's top 10 houses of 2015
Most Loved: Dutch designer Hella Jongerius reflects on the enduring popularity of her very first sofa design in the second movie from our exclusive new video series. More about Hella Jongerius' 2005 Polder Sofa for Vitra is a "collage of textiles"
A swimming pool with a glass bottom spans the void between two Parisian tower blocks in this proposal by architect Tommaso Bernabò Silorata, which aims to give swimmers a "vertiginous diving experience". More about Vertiginous pool proposed by Tommaso Bernabò Silorata between two matching skyscrapers
Dutch shoe designer Marloes ten Bhömer has created a conceptual shoe that replaces the traditional high heel with a slanted panel of stainless steel on the side. More about Marloes ten Bhömer's Bluepanelshoe is an alternative to conventional "clichéd" high heels
A trio of board-marked concrete volumes are stacked to create this holiday home by Luciano Kruk, which stands in the dunes of a golf course on the Argentinian coastline (+ slideshow). More about Board-marked concrete house by Luciano Kruk stands on a seaside golf course
Architecture studio Morphosis and landscape architect James Corner Field Operations are among the four teams that have been shortlisted to redesign one of Los Angeles' oldest public parks. More about Four finalists announced for revamp of Pershing Square in downtown LA
Opinion: municipal architects helped create some of 20th-century Europe's best cityscapes and buildings, says Owen Hatherley. It's time for them to return. More about "Wouldn't buildings be better designed by people who lived in the city where they practiced?"