The Edge House, designed by Poland-based Mobius Architects, occupies an excavated niche on a limestone hillside in Cracow. Construction on the home recently commenced, and these conceptual renderings illustrate its unorthodox site conditions. Aside from its site, the Edge House’s most striking feature is a front elevation dominated by a steep, shingled roof, pierced by windows and a large terrace jutting over the site of a former quarry. The roof was necessitated by local building codes, which don’t allow for roofs with less than 30 degree slopes. Via SwipeLife.com Visit Mobius Architects