Fifty-two white-topped cubes make up the residences of this retirement home near Lisbon by Guedes Cruz Architects, but a roof turns bright red if someone inside sounds the alarm (+ slideshow). More about White rooftops turn red during emergencies at retirement home by Guedes Cruz Architects
The triangular form of this concrete home in Greece by Tense Architecture Network creates a large window overlooking olive groves and the Gerania Mountains (+ slideshow). More about Tense Architecture Network completes a "frugal" concrete home in a Greek olive grove
Cologne 2015: Dutch designer Ineke Hans has incorporated slender drawers beneath the surface of this table to store items such as cutlery, letters or tablet devices (+ slideshow). More about Ineke Hans' Drawer Table offers storage for slender items
Architectural photographer Maxime Delvaux challenged students at Brussels University to create scale models that would appear realistic when photographed (+ slideshow). More about Maxime Delvaux's realistic photos of student models offer an alternative to 3D renders
Wooden louvres and green rooftops make up the exterior of this market hall outside Paris by Ameller, Dubois & Associés, while inside is a dramatic ceiling that combines angles and curves (+ slideshow). More about Wooden louvres and grassy rooftops added to Marly-le-Roi market hall
Australian architect Louise Nettleton has shoehorned a coffee shop for comic-book lovers into a narrow gully formerly used as a driveway, near Sydney's Central Station (+ slideshow). More about Louise Nettleton converts Sydney driveway into a comic-themed cafe
Northmodern 2015: Danish designer Troels Flensted has produced a collection of resin tabletops patterned with flecks of brightly coloured pigment (+ slideshow). More about Troels Flensted uses flecked resin surfaces as tabletops
This rural Japanese house by Suppose Design Office features sunken rooms and see-through walls, designed to allow residents to observe and interact with wild animals (+ slideshow). More about Hiroshima Hut by Suppose Design Office is a see-through house with sunken rooms
Fashion designer Raf Simons has unveiled his latest footwear collection for Adidas, with colours and materials taken from retro astronaut apparel (+ slideshow). More about Raf Simons' trainers for Adidas are based on vintage space suits
Maison&Objet 2015: Italian designer Luca Nichetto is launching his latest products under his own brand – called Nichetto – at the Maison&Objet trade show in Paris today (+ slideshow). More about Luca Nichetto launches eponymous design brand with 11 products
This office with thatched walls by Attika Architekten floats in Amsterdam's harbour, creating a base for the city's water-cleaning service (+ slideshow). More about Thatched office for Amsterdam's canal cleaners is "the biggest ark in the Netherlands"
News: Microsoft has revealed an early version of an augmented reality headset called HoloLens that creates interactive holographic imagery in the wearer's field of vision (+ slideshow). More about Microsoft's HoloLens headset combines high-definition holograms with the real world
News: Adidas has revealed its latest running shoe – combining a flexible knitted upper with a new version of its Boost "energy return" midsole that uses a material usually found in car dashboards (+ slideshow). More about Adidas launches Ultra Boost trainer to "revolutionise running"
Northmodern 2015: a wooden bench that hides a compartment for a plant pot below its seat is among the latest furniture and homeware items launched by Danish designer Kristina Dam (+ slideshow). More about Kristina Dam designs pale oak furniture to incorporate plants
San Francisco studio Lapka has imagined a range of health-related modules that would fit onto the Project Ara smartphone – for which Google unveiled the latest prototype last week (+ slideshow). More about Health-monitoring components designed for Google's Project Ara modular smartphone
News: Rotterdam firm MVRDV has won a contest to design a new addition to the Vienna skyline by proposing a 110-metre tower with an "elegant, hourglass figure" that will reduce the impact of its shadow (+ slideshow). More about MVRDV plans skyscraper with a "curving waist" for Vienna
Stockholm 2015: Italian designer Luca Nichetto's collection of upholstered seats for Danish brand &tradition is intended to merge elements from the furniture heritage of both countries (+ slideshow). More about Luca Nichetto combines Danish and Italian design for Cloud seating range
This asymmetric concrete chapel by EMC Arquitectura teeters on the edge of a mountain in El Salvador (+ slideshow). More about Skewed concrete chapel by EMC Arquitectura balances over a mountainside in El Salvador
News: the team behind an entirely solar-powered aircraft has revealed the planned path for a record-breaking flight around the world that won't use a single drop of fossil fuel (+ slideshow). More about Solar plane to embark on fuel-free flight around the world
Purple amethyst crystals formed inside rocks provided the inspiration for this ambitious hotel design, proposed by Dutch studio NL Architects for an island off the south coast of China (+ slideshow). More about NL Architects proposes "slightly insane" hotel modelled on amethyst crystals