Mars 

The Martian surface seen from the Viking 1 lander:

Viking 1 site, about 15 minutes before sunset:

Viking 1 site, Shows dust deposited on "Big Joe" boulder. The boulder is about 2 meters long and about 8 meters from the lander:

Viking 1 site, a small dune field near the lander:

Panoramic view of the Viking 1 site. The horizon is about 1.8 miles away:

Another panoramic view from the Viking 1 site:

The Martian surface from the Viking 2 lander. This is an 85 degree panorama. The horizon is tilted due to the 8 degree tilt if the lander:

Viking 2's surface sampler arm retrieves a sample: