On 10 January 2004, the first of thousands of detailed images of the Martian surface was captured by the High Resolution Stereo Camera (HRSC), which is a German research instrument on board the European Space Agency’s Mars Express spacecraft, which has been in orbit around Mars since December 2003. During the last 15 years, HRSC has acquired image data during more than 5000 orbits, resulting in a steadily increasing set of spectacular views of the Martian surface, image and digital terrain model mosaics, and movie releases. HRSC coverage of the Martian surface with high resolution (better than 20 meter per pixel) has reached 80 percent.