There 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-T

There 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-TAgoA https://www.youtube.com/watch?v=pLUiY-TAgoA https://www.youtube.com/watch?v=1mIM-wZiBck https://www.youtube.com/watch?v=1mIM-wZiBck https://www.youtube.com/watch?v=hEmcvHLBL4I https://www.youtube.com/watch?v=hEmcvHLBL4I https://www.youtube.com/watch?v=r-WZ4IAZoTU https://www.youtube.com/watch?v=r-WZ4IAZoTU Probably not as impressive as OP, but it's still something built by one man alone.