throwawayru6f·il y a 4 ans·discussThere is an amusement park built by a Russian guy Yuri here, a formal TV interview plus several videos of it in action:https://www.youtube.com/watch?v=pLUiY-TAgoAhttps://www.youtube.com/watch?v=1mIM-wZiBckhttps://www.youtube.com/watch?v=hEmcvHLBL4Ihttps://www.youtube.com/watch?v=r-WZ4IAZoTUProbably not as impressive as OP, but it's still something built by one man alone.
https://www.youtube.com/watch?v=pLUiY-TAgoA
https://www.youtube.com/watch?v=1mIM-wZiBck
https://www.youtube.com/watch?v=hEmcvHLBL4I
https://www.youtube.com/watch?v=r-WZ4IAZoTU
Probably not as impressive as OP, but it's still something built by one man alone.