The European Space Agency's Mars Express mission left Earth in June, 2003, and by Christmas day that year, the orbiter started circling around the red planet. The satellite has now made nearly 12,500 orbits of Mars, allowing the agency to stitch together a digital model of the surface of the planet using the orbiter's high-resolution stereo camera. The German Aerospace Center released the video above based on that model, giving an unprecedented 3D tour of the planet's valleys and peaks — including Olympus Mons, which at 22 km is the highest mountain on any planet in the solar system (it's about two-and-a-half Everests).
Of course, the Mars Express mission is about more than just pretty pictures — over the last 10 years, the orbiter has also been mapping out the composition of the planet's minerals and atmosphere. For more on the project, including some stunning stills from the surface, check out the ESA Mars Express website.