No, the only spaceships that have ever landed anywhere is the moon. And the only place they have landed robots that take pictures (forgot what they are called) have only landed on mars. i don't know if that is the answer you were looking for but....yeaa
Neptune is the fourth largest and third most massive planet in the solar system, but it is also a "gas giant" with no surface that can be landed on. It will be many years before any human visits the planet, and it would be strictly an orbital mission.