SkyBox box , like in real games

SkyBox for you game =) .Need to modify Mesh again , beacos....Again private stuff , need to be changed to protected. Texture example: https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQrw8sbhbiNmJ1NY6uHVVJWHrfnDBHkaE40sXSiy0MPH6nLZtuzuA , http://s3.garrysmod.org/img/cache/9/1/3/5/5/218d8d91a9620cebcc6e3f695433c0dd.jpg . DONT USE THAT EXAMPLES IN YOU PROJECT - made you own. That is just example of positioning , not finnal texture for you! 

ps: example with side-names: http://www.mbsoftworks.sk/content/tutorials/opengl3_3/articles/10_opengl3_3/sample_skybox.gif