Of all the stunning bluff homes in the Quad-Cities, this one is special. The "Quarry House" appears to perch like a nesting hawk atop a limestone cliff. Just below it, a lake hints at its history as a quarry through its blue-green waters. And, of course, the design of the house is at the same time foreign and familiar. Just north of LeClaire, along U.S. 67, the Quarry House has long been a mystery and a marvel to passersby.