Manhattan Transfer: Geothermal Technology in the City

Tapping into the constant temperature 1,200 feet underground, a Tribeca architect pioneers the use of geothermal technology to heat and cool his rock solid, energy efficient family home.

This stairwell is made of recycled glass slabs. Stainless-steel mesh made for industrial use replaces a far more expensive handrail for the staircase. Low-toxic acrylic paint, made by Fine Paints of Europe (www.finepaints.com), coats the walls.