The wood-and-steel open staircase wends its way up three stories, supported by a concrete structural wall embedded with PVC tubes and bare lightbulbs. Read more about this 21st-century Argentine home here. Photo 8 of 9 in Concrete Proof: 9 Ways to Design with Cement by Kelsey Keith from Step by Step

Concrete Proof: 9 Ways to Design with Cement

8 of 9

The wood-and-steel open staircase wends its way up three stories, supported by a concrete structural wall embedded with PVC tubes and bare lightbulbs. Read more about this 21st-century Argentine home here.