Enjoy your weekend.
Fallingwater, Bear Run, Pennsylvania, usually described as America's most famous private residence, and about an hour's drive east of Pittsburgh, photographed in August 2011. The cost estimate Frank Lloyd Wright presented to patron Edgar Kaufmann, the Pittsburgh department-store magnate, was $30,000. Final cost: $155,000. And it leaked, always a sign of architectural genius.
Photos by EB contributor Mary Lou Chlipala.