Architecture studio OMA has completed its extension to the Musée National des Beaux-Arts du Quebec, which features a stack of stepped galleries and a protruding, angular staircase (+ slideshow). More about OMA's Pierre Lassonde Pavilion doubles the size of Quebec art museum
A Globe-inspired theatre in northern France has been vandalised a week before its opening, an act the architect believes was "politically motivated desecration" by members of the far right. More about Architect blames far-right parties for attack on Shakespearean theatre in France
These new images by British photographer Jim Stephenson offer a look around Herzog & de Meuron's extension to Tate Modern in London, which officially opened on Friday (+ slideshow). More about Tate Modern Switch House by Herzog & de Meuron opens to the public
David Adjaye's firm has been selected to design a major new art museum in Riga, Latvia (+ slideshow). More about Adjaye Associates chosen for Latvian Museum of Contemporary Art
A year after transforming an old house into a gallery at the foot of the Swiss Alps, architect Matteo Inches has extended the building with a new concrete and granite gallery (+ slideshow). More about Studio Inches adds concrete and granite gallery to Alpine art museum
Architectural photographer Iwan Baan has taken new images of the Steven Holl-designed Bloch Building at the Nelson-Atkins art museum, which show the structure as it enters its 10th year (+ slideshow). More about Steven Holl's Bloch Building in Missouri recaptured in photographs by Iwan Baan
Paris architecture office Dorell Ghotmeh Tane has created a new home for the Estonian National Museum – a 355-metre-long sloping glass building that rises from the runway of a former Soviet airbase near the city of Tartu (+ slideshow). More about Dorell Ghotmeh Tane's Estonian National Museum occupies site of former Soviet airbase
Adjaye Associates, Henning Larsen Architects and Caruso St John are among the seven shortlisted teams whose designs for a major new art museum in the Latvian capital have been unveiled today (+ slideshow). More about Designs by Adjaye and Henning Larsen revealed on Latvian Museum of Contemporary Art shortlist
Pritzker Prize winners Álvaro Siza Vieira and Eduardo Souto de Moura have teamed up to renovate a museum at a historic Portuguese monastery and have also added a new contemporary sculpture museum (+ slideshow). More about Álvaro Siza and Eduardo Souto de Moura team up for Portuguese museum project
Swiss firm Herzog & de Meuron has released a full set of images of the Vitra Schaudepot – a new gallery for the permanent collection of the Frank Gehry-designed Vitra Design Museum in Weil am Rhein, Germany (+ slideshow). More about Herzog & de Meuron reveals more photos of new Vitra Design Museum gallery
This spiritual refuge by Aidlin Darling Design at California's Stanford University features vertical cedar slats and thick walls made of soil excavated from the building site (+ slideshow). More about Aidlin Darling creates a meditation centre at Stanford University with rammed-earth walls
This wedge-shaped, pre-rusted steel museum by Nizio Design is dedicated to the role that Polish citizens played in protecting the lives of Jews during the second world war (+ slideshow). More about Nizio Design commemorates the Holocaust with angular weathering-steel museum
Hungarian firm Napur Architect has been selected ahead of BIG, OMA and Zaha Hadid Architects to design a major new museum in Budapest's City Park (+ slideshow). More about Napur Architect wins Budapest museum contest with huge skateboard-ramp design
Critics have had mixed reactions to the Snøhetta-designed extension of Mario Botta's San Francisco Museum of Modern Art, with descriptions ranging from a "good citizen" to a "baked alaska slumped on the skyline". More about Critics compare Snøhetta's SFMOMA extension to a "gigantic meringue" and a "cruise ship"
Architecture studio Furuichi and Associates has completed a museum dedicated to Japan's Jōmon period, featuring a multi-faceted roofscape designed to evoke the inside of a cave (+ slideshow). More about Jagged wooden roof frames museum dedicated to Japan's Jōmon period by Furuichi and Associates
The Yale Center for British Art, designed by architect Louis Kahn, has reopened following a refurbishment that "sets a new standard for the stewardship of modern architecture" according to Robert AM Stern (+ slideshow). More about Louis Kahn building at Yale reopens following meticulous restoration
Studio MDA and Studio Christian Wassmann have collaborated to create the first US outpost for Lisson Gallery, which has a roster of contemporary artists that includes Ai Weiwei and Marina Abramović (+ slideshow). More about Lisson Gallery opens a new location under New York's High Line
Steven Holl Architects has revealed designs for a Pennsylvania arts centre with a sculptural, white form that references a kite. More about Steven Holl unveils visual arts centre for historic Pennsylvania college
OMA and Allies and Morrison have completed the redevelopment of the former Commonwealth Institute in London, adding three blocks of private housing that have helped fund the transformation of the protected building into a new home for the Design Museum (+ slideshow). More about OMA and Allies and Morrison complete Commonwealth Institute overhaul and housing
Four pebble-shaped volumes form this cultural centre completed by Bargone Architetti Associati on the stony shoreline of Lake Maggiore, Italy (+ slideshow). More about Lakeside theatre designed by Bargone Associati to look like huge rocks