This is like the holy grail of videogaming. Are there any other videogame legends and artifacts like this and the Atari cartridge dump[0] that could be lying a

This is like the holy grail of videogaming. Are there any other videogame legends and artifacts like this and the Atari cartridge dump[0] that could be lying around somewhere? [0] https://en.wikipedia.org/wiki/Atari_video_game_burial https://en.wikipedia.org/wiki/Atari_video_game_burial