This week the first 3D-printed gun was fired, closely followed by a US government ban on the blueprints allowing people to download and print one for themselves. Read on for our roundup of the past seven days plus the Dezeen Music Project track of the week. More
This concrete staircase into the air by Lisbon architecture studio Ateliermob functions as a riverside amphitheatre on the banks of the Tagus in central Portugal (+ slideshow). More
Calling all musicians! Dezeen Music Project is looking for original tracks to play at new design show INTRO NY in New York next week, where we're providing the sounds. If you’re a musician, composer, DJ or producer, we want to hear your best party music. More
This house track by Tel Aviv-based producer Kobi Glas features a prominent vocal from the jazz classic You Go To My Head, originally recorded by Teddy Wilson and Nan Wynn - though Billie Holiday's version is probably better known. This version of the song was sung by Alex Maclaine.
News: the Museum of Modern Art in New York is to reconsider its decision to demolish the former American Folk Art Museum next door following an outcry from architects, conservationists and critics. More
Six windows with rustic white wooden shutters feature in this renovated living room by Dutch designer Bo Reudler. More
This apartment block in the Iranian town of Mahallat was constructed using the otherwise useless offcuts from local stonecutting businesses. More