#cityonmarsUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesSteemit FeedbackNewcomers' CommunitySteemitCryptoAcademyআমার বাংলা ব্লগKorea • 한국 • KR • KOSteem POD TeamSteem AllianceSTEEM CN/中文WORLD OF XPILARComunidad LatinaBeauty of CreativitySCT.암호화폐.Crypto#cityonmarsTrendingHotNewPayoutsMutedjohnwicks (25)in #cityonmars • 2 years agoMars City: A Global EffortMars City is a proposed human settlement on Mars. The project is still in its early stages, but it has already…