Unexplainable Ruins in China, Enormous Chinese Pyramids, & Underground Cities (Heijin City Fortress)

Next to the Heijin City Fortress, there is an insanely large pyramid. The military keeps the pyramid secret, but we will reveal a lot about it in this video. Become a member of the channel and get featured in end-screens: I went through thousands of man-made caves in China (grottoes). Join the discord and chat with me and the amazing community: Credit to Curious Being for the Machine Marks footage - Check her channel! @CuriousBeingbyTina