Area 51
Area 51 represents perhaps the most successful cultivation of institutional mystery in modern history. The facility's existence was not officially acknowledged until 2013. Approximately 78% of Americans believe the government conceals information about UFOs, a statistic directly attributable to Area 51's cultivated mystique.
Mickey Mouse
Mickey Mouse operates an altogether different species of mystery - that of corporate opacity. The character's precise emotional mechanics, the formula for his universal appeal, remains genuinely inexplicable to child psychologists. Disney's vault system, which periodically removes classic films from availability, creates artificial scarcity rivalling any governmental classification.