Yes. Twelve spacecraft have landed on Mars.
Mars
the first two spacecrafts to land on mars were 2 vikings from NASA, the national aeronautics and space administration
the moon and mars
Yes. We have landed multiple probes and rovers on Mars.
Yes several unmanned space craft have made landings on mars. For more info go to the related link (Mars landing) below
Sebastion the Phisics master
Terrestrial planets not landed on - Venus.
Earth Moon Venus Mars Titan Eros Temple 1 Itokawa
no human has landed on mars yet. just a few machines taking pictures
yes NASA has landed several spacecrafts on Venus
The answer is mars.
By sticking their landing sticks to the moon craters.