Mars’ Ice Cap
Mars is the only other planet in our solar system apart from Earth that actually has ice caps. The southern ice cap of the planet is made of dry ice.
Olympus Mons is a volcano in Mars that happens to be the largest mountain in the solar system. It stands at a whooping 13.2 miles, making it three times bigger than Everest. It also has a surface area that is the same size as the state of Arizona.