Railway sleepers form the walls of this extension to a library in Azkoitia, Spain, which is located at the town's former railway station. More about Estudio Beldarrain uses reclaimed railway sleepers to extend Spanish library
Brazilian studio Rain has created a collection of six tables designed to look like miniature swimming pools. More about Swimming pool-shaped tables by Rain include removable ladders
Japanese studios Sandwich and Team Low-Energy used three truckloads of timber to create the sculptural facade of this Tokyo house that also boasts a two-storey-high library and an indoor swing (+ slideshow). More about Kyodo House features a sculptural wood facade and an indoor swing
The roof of this extension to a Copenhagen cultural centre is shaped like an elongated S, and it appears to ramp up over the roof of one of the buildings it adjoins (+ slideshow). More about S-shaped extension links two sides of Copenhagen's Mariehøj Kulturcenter
South Korean designer Seung Jin Yang has coated brightly coloured balloons in resin to create these inflated seats. More about Seung Jin Yang's Blowing chairs are made from party balloons
The RCA is set to expand with another new campus near its existing buildings in Battersea, after the UK government pledged to contribute funding for the project in its autumn spending statement. More about Royal College of Art to build £100 million design and technology campus in south London
New York studio Apparatus has unveiled a marble lantern and vessel that embody "the visual language of ceremonial objects" (+ slideshow). More about Apparatus creates Neo Marble collection influenced by ancient rituals
Danish firm Bystrup has been selected to design a new pedestrian and cycle bridge across the River Thames in west London – the same day another crossing was unveiled for the other side of the city. More about Bystrup triumphs in Nine Elms to Pimlico bridge contest with "elegant and simple" design
Rem Koolhaas' firm OMA is to build its first major public building in the UK after winning an international competition to design The Factory in Manchester. More about OMA wins competition to design huge Manchester arts venue The Factory
Paris-based ARRO Studio has transformed a 19th-century warehouse into the design studio for British shoe brand Clarks, adding factory-shaped volumes that house meeting rooms and offices (+ slideshow). More about ARRO Studio creates Clarks Originals headquarters within historic warehouse
Self-driving cars could disrupt the airline and hotel industries within 20 years as people sleep in their vehicles on the road, according to a senior strategist at Audi. More about Driverless cars could spell the end for domestic flights, says Audi strategist
Apollo Architects & Associates named this Tokyo house after Noah's Ark because it features a symmetrical floor plan and a pointed wooden roof. More about Ark-inspired house by Apollo Architects features a symmetrical layout
London studio reForm Architects has revealed plans for an opening bridge that would allow both pedestrians and cyclists to travel across the River Thames between Canary Wharf and Rotherhithe (+ movie). More about London's first opening pedestrian and cycle bridge proposed for Canary Wharf
Dutch Design Week 2015: Dutch designer Emilie van Spronsen harvested feathers and bones from the corpses of bird flu-infected chickens to create this stool and urn. More about Slaughtered bird flu-infected chickens transformed into furniture by Emilie van Spronsen
Paris-based JUNG Architectures has converted a former French leper colony into a gallery, adding an zinc-clad extension that can be used for wine tasting (+ slideshow). More about JUNG Architectures adds zinc-clad extension to former leper hospital
Barcelona design studio Goula/Figuera has created a collection of hanging lights that are based on thousands of drawings. More about Goula/Figuera's modular lights resemble geometric ink illustrations
This house in Mexico is made up from a series of concrete boxes, which are staggered across a steep site to take in views of Lake Avándaro (+ slideshow). More about Concrete house in Mexico by Taller Hector Barroso cascades towards a lake
Brazilian architect Isay Weinfeld has unveiled designs for his first New York project: a high-end residential building in the Chelsea neighbourhood (+ slideshow). More about Isay Weinfeld's first New York project is a luxury housing development
Writing implements shaped like paintbrushes and squeezable tubes of paint feature in a collection of pencils designed by students from the Holon Institute of Technology. More about Holon Institute of Technology students create alternative pencil designs
Danish metalware brand Georg Jensen has shaken off its "dusty" reputation and now has high-profile designers queuing up to collaborate on products, according to creative director and CEO David Chu (+ slideshow). More about Running Georg Jensen is "like being the most beautiful girl at the party" says CEO David Chu