Thirteen Miles In Three Years

During the three-year trek of NASA's Mars Rover Opportunity from Victoria crater to Endeavour crater, rover planners captured a horizon photograph at the end of each drive.
309 images taken during the 13-mile journey appear in this video.
Numbers at top left tell Martian day numbers of the mission.
Audio comes from rover accelerometer data adjusted to an audio frequency.
It indicates vibrations of the rover:
louder on rocky surfaces, quieter on sandy ground.