Twelve South providing free Charleston-themed dual-screen Mac wallpapers

Charleston, SC is not only the home of Apple accessory design shop Twelve South, but a city that's often listed in compilations of the most beautiful cities of the world. Twelve South is giving all of us who aren't privileged to live in Charleston to share in its beauty through the release of three dual-screen Mac wallpaper sets.

The images are all by Charleston photographer Kim Graham, and this collection -- titled Charleston at Sea Level -- features matching side by side images that can stretch across almost any size of Mac screen at top resolution...and onto a second screen as well.

I'm not sure which one is my favorite, but Sunrise on Folly Beach (seen at top) and Charleston Harbor (below) are fighting it out for the backgrounds on my 27-inch 5K Retina iMac and 13-inch MacBook.