Editor’s note: Sign up for Unlocking the World, CNN Travel’s weekly newsletter . Get news about destinations, plus the latest in aviation, food and drink, and where to stay. CNN  —  Nudity is getting more creative. Not in an artistic sense — the naked human form has been a favorite subject of painters and sculptors for more than 2,000 years — but in the imaginative and sometimes offbeat ways that people are using to shed their clothes in public. In January, the Norwegian Pearl completed an 11-