Architecture firm Skidmore Owings & Merrill has unveiled its vision to transform the Beaux-Arts 30th Street Station and its surrounding area in Philadelphia (+ movie). More about SOM unveils masterplan for Philadelphia's 30th Street Station district
For his first solo exhibition in the USA, Berlin-based architect Diébédo Francis Kéré has created a rainbow-coloured installation made of thousands of strands of lightweight cord (+ slideshow). More about Kéré Architecture suspends colourful strings from ceiling of Philadelphia art museum
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
New York-based Ennead Architects has completed a renovation and expansion of the Westmoreland Museum of American Art, adding a zinc-clad volume that juts out from the facade (+ slideshow). More about Ennead completes Pennsylvania museum wing that cantilevers over the landscape
Danish architecture studio BIG has revealed its masterplan for Pittsburgh's Lower Hill District, featuring sloped-roof buildings and an extensive network of pathways (+ slideshow). More about BIG unveils design for urban neighbourhood on site of former Pittsburgh hockey arena
The Flight 93 crash-site memorial built to commemorate the victims of 9/11 opened to the public today in Shanksville, Pennsylvania, marking the 14th anniversary of the attacks. More about Flight 93 Memorial opens in Pennsylvania to mark 14th anniversary of 9/11
Pomo summer: when American architect Robert Venturi designed a home for his mother in the late 1950s, he reinterpreted the archetypal suburban house as a contemporary architectural statement. Its influence was so great, it is now credited as the first Postmodern building, and is the next in our summer season on Postmodernism. More about Postmodern architecture: Vanna Venturi House, Philadelphia by Robert Venturi
Brooklyn-based visual artist Aaron Asis tied over 2,000 metres of blue cord across Philadelphia's disused St Andrew's Collegiate Chapel for this installation (+ slideshow). More about Blue cord criss-crosses the interior of an abandoned church in Philadelphia
The Philadelphia Museum of Art is hosting an exhibition of products by Swiss brand Vitra to celebrate the company's American ties (+ slideshow). More about Vitra retrospective goes on show in Philadelphia
News: Frank Gehry has unveiled his masterplan to overhaul and expand the Philadelphia Museum of Art by adding underground galleries that won't disturb the architecture of the existing Beaux Arts building (+ slideshow). More about Frank Gehry reveals "under the radar" refurb for Philadelphia Museum of Art
This house in Pittsburgh by American architect Eric Fisher cantilevers by 16 metres to hover over the roof of a glass factory (+ slideshow). More about Emerald Art Glass House by Fisher Architecture
Design studio Qb of Philadelphia have completed a house in Philadelphia that features a glazed interior wrapped in a curved brick facade. More about Split Level House by Qb
Architectural photographer Todd Eberle has photographed Esherick House, a 1961 home in Philadelphia designed by architect Louis Kahn, which is being sold at auction in May. More about Esherick House by Louis Kahn
Artjail is a satirical proposal for the Barnes Foundation in Philadelphia that involves moving the famous art collection to a new building in the centre of the city and combining it with a youth prison and gambling facilities. More about Artjail in Philadelphia