Round Cover, Alien Base or Missile Silo? Looks like a covered entrance into an underground space. An alien base or a Sudanese missile silo? Name: Round Cover, Alien Base or Missile Silo Lat, Long: 9.168962, 30.382905 Location: Sudd, Jonglei, South Sudan December 13, 2016 Weird Cool Stuff, Mysterious Structures, Weird Stuff No Comment Mysterious, Weird building Australian Desert Mounds Curves Parallel to Highway Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment * * Yes, add me to your mailing list. Notify me of follow-up comments by email. Notify me of new posts by email.