After landing in 2004, Opportunity was only expected to las (at best) 9-months on the surface of Mars.. it surprised the world by going on more than 11-years and traveling more than 26-miles making incredible discoveries on the way.
Below is a time-lapse video of Opportunity's journey. Check it out:
The video is over eight minutes long, but the 11 years it depicts seem to fly by in an eye blink. Pay close attention and you can watch the rover revisit its deflated landing craft, investigate its own discarded heat shield, get stuck in a sand dune for two months, and explore all sorts of bizarre Martian terrain.