A multi-directional black staircase bridges the main entrance space in this converted office building in Belgium (+ slideshow). More about Steven Vandenborre adds cross-shaped staircase to an industrial office conversion
Movie: in our next exclusive movie with Julia Peyton-Jones, the Serpentine Gallery director discusses the artificial mountain MVRDV proposed for the 2004 Serpentine Gallery Pavilion, which eventually proved too expensive to build. More about MVRDV's proposed 2004 Serpentine Gallery Pavilion was "a heroic failure"
Eindhoven designer Hozan Zangana has created a set of ceramics for the traditional Persian new year celebration based on the forms of the calligraphic Nastaliq script. More about Haft Sin ceramics by Hozan Zangana echo the outlines of Persian calligraphy
Architect Jeanne Gang has unveiled plans for a geologically-inspired extension to the American Museum of Natural History in New York (+ slideshow). More about Studio Gang designs curving concrete expansion to New York's Natural History Museum
This multipurpose building at the University of Luxembourg combines an 18-storey tower with a horizontal volume that cantilevers at both ends (+ slideshow). More about Steel grid covers double cantilevered building for the University of Luxembourg
Dutch Design Week 2015: French designer Capucine Diancourt's series of unconventional playground equipment includes non-fixed rocking items that challenge children to keep their balance. More about Precarious playground structures by Capucine Diancourt rely on users' balance
We've been reporting from the World Architecture Festival and Inside Festival 2015 in Singapore this week. Our new Pinterest board is filled with award-winning projects from the events, including Ole Scheeren's World Building of the Year and March Studio's World Interior of the Year.
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More about New Pinterest board: World Architecture Festival and Inside Festival 2015
A traditional Japanese construction method was used for this house in Tokyo, which features four wooden columns arranged in a square to support the rest of the timber frame (+ slideshow). More about FT Architects' 4 Columns house features a traditional timber frame and minimal interior
This cafe in the Iranian capital is designed to act as a semi-public venue in the city, where open gathering spaces are starting to become popular again after years of heavy policing (+ slideshow). More about Modaam Architects' cafe aims to create a new kind of public space in Tehran
Music: American animator Jeanette Lee borrowed the shapes of Tokyo's Nakagin Capsule Tower to create a science-fiction urban landscape for Dewy Sinatra's In My Bubble music video. More about Jeanette Lee animates a futuristic city for Dewy Sinatra's In My Bubble video
A bright pink sex toy-cum-furniture piece that can be mounted like a vaulting horse is among this week's most-read stories on Dezeen. Other popular pleasure devices in our archives include a blown-glass clockwork vibrator, a dildo with a compartment for storing the ashes of a deceased partner and a device that doubles as a pendant necklace. Explore more design for sex »
More about Today we like: sex toys
Taiwanese studio HAO Design installed a play area in the kitchen of this family home so the children could spend more time with their parents. More about HAO Design adds wooden slide and swings to family home in Taiwan
Belgian architects Edouard Brunet and François Martens have converted a terraced house in Brussels into two apartments, adding a projecting box with a full-height glass wall to house a new kitchen (+ slideshow). More about Kitchen extension projects from the top floor of a renovated Brussels house
This week on Dezeen: architect Magnus Ström launched a bespoke-housing service for multi-millionaires this week, while Renzo Piano unveiled plans for a luxurious apartment tower in Miami (pictured). More about This week, homes for the super rich and Renzo's luxury Miami tower hit the headlines
Japanese studio Nendo has designed a collection of ceramic tableware with handles to help store them in compact spaces and carry hot food. More about Nendo designs Totte plates and bowls for small apartments
Estudio ALA created this open-air chapel with a tall brick tower for staff at a tequila factory in the Mexican countryside (+ slideshow). More about Estudio ALA completes terracotta chapel at a Mexican tequila factory
Spanish designer Jaime Hayón is launching a limited-edition chronograph with a chimp-like face for his watch company Orolog. More about Jaime Hayón designs monkey-faced Miko watch for Orolog
Our US job of the week on Dezeen Jobs is for interior designers at Robert A M Stern Architects, which led the design of the 15 Central Park West apartment block in New York (pictured). Visit the ad for full details or browse other architecture and design opportunities on Dezeen Jobs.
More about US job of the week: interior designers at Robert A M Stern Architects
Yves Behar's San Francisco studio Fuseproject has designed an octagonal portable charger that can accommodate a computer, a smartphone and a tablet at the same time (+ slideshow). More about Zolt charger by Yves Behar powers three devices at once
Competition: Dezeen is giving away four pairs of tickets to a series of architectural discussions in London, which aim to "turn the conventional archi-debate format on its head". More about Competition: win tickets to Turncoats architecture debate series