This recycled house comes from steel and concrete salvaged from Boston’s Big Dig, using over 600,000 lbs of materials repurposed from elevated portions of the dismantled I-93 highway. Designed and built in pre-fab fashion, this wood, glass and steel home features an industrial-chic interior design, with warm natural woods contrasting cool steel and concrete details. Big Dig House in Lexington, Massachusetts, designed by SsD Architects, is a lesson in sustainable building practices with stunning results. The house is laid out in a series of layers with lofts, providing each separate living area some privacy while keeping them all connected in the grand scheme of the design. Because of the materials’ high load-bearing potential, the architects incorporated elaborate rooftop gardens. for more design you can check on SsD site.