Mario and company have gone into all kinds of environments. While some environments like plains, beaches, and volcano valleys are common, there are some environments that are rather uncommon; some have only been in one game yet! What are some of your favorite unique levels? For an example, I like the Painted Swampland environment from New Super Mario Bros. U. It's a neat take on what was already a fusion of two unique environments (jungle with poisonous waters and spooky places)