Discovery Ancient Aliens: Crystal City Discovered Under Antarctica 573 views During an Arctic expedition, naval officer Richard Burn makes a very unusual discovery, in this clip from Season 18, "Secrets of Inner Earth." science history aliens Antarctica ancient What's your reaction? 1 AWESOME! 1 NICE 1 LOVED 0 LOL 0 FUNNY 0 FAIL! 0 OMG! 0 EW! Comments Comment 0 comment Best Oldest Newest Write the first comment for this! Facebook Conversations
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