In what is a masterful feat of structural engineering, architect Junya Ishigami has sculpted concrete cantilevered display shelves that are up to 12-meters (39-feet) long.

Ishigami designed the interiors for Tokyo-based eyeware brand JINS, who have opened their first branch in Shanghai. The shop features three protruding, cantilevered display shelves that are sculpted from concrete that are 12-meters long. Two shorter shelves for customer assistance round out the shop, which is beautifully minimalist yet impactful...