A Visionary Project is a project that is created with a long-term vision in mind. It is often ambitious and requires a lot of planning and resources to be successful. The term 'SCHEME' is used to describe a plan or design that is created to achieve a particular goal. A 'castle in the air' is an expression used to describe an unrealistic or impractical idea. Therefore, a Visionary Project is a plan or design that is created with a long-term vision in mind, but may be considered unrealistic or impractical.