Acid-stained Concrete Patio -- Looks like copper! Click the pic for a brief how-to video on doing this technique. I'd love to do this, although I wonder if the acid stain is bad for those plants around the patio.
Staining concrete can be an inexpensive way to update the exterior look of your home. The finished stain will create natural tones that are an impressive improvement from unstained concrete slabs and walkways.