It took NASA’s Spirit rover a year and a half to get to the top of Husband Hill in the Gusev Crater on Mars. It finally made it, and, like all mountain climbers, took a photo. Check this out!
You may have seen lower-res versions in your newspapers, but the full res shows much more. Note the dust devil whirling in the distance!
There is lots more info on this amazingly long-lived mission, and more photos at http://marsrovers.jpl.nasa.gov/home/index.html