AnikaBloodstone

Hi! I apologize in advance if this is posted in the wrong forum. I would like to build my own skybox. I have searched for info but haven't really been able to figure too much out. Do I need to own land in order to build a skybox over top of it or can i just build it anywhere? Are there any good tutorials about this? Any and all info would be very much appreciated as I have no clue! Thanks!