Final answer:
Mars is the object other than Earth that has visible water on its surface.
Step-by-step explanation:
The object other than Earth that has visible water on its surface is Mars.
Mars has a long history of liquid water on its surface, although the surface today is mostly dry and cold. There is strong evidence for subsurface water on Mars, and water flows briefly on the surface under the right conditions.
Note that the Moon, Mercury, and Venus do not have visible water on their surfaces.