Matevž Lenarčič of Slovenia, is back in Slovenia with this video from his just-completed trip around the world. Scroll down to “Flying around the world is not always fun.” At least the scenery was spectacular even when exhaustion set in. GreenLight WorldFlight used a speedy Rotax-powered Pipistrel and included a stop in Antarctica plus a flight next to Mt. Everest. He was bugged by aircraft problems (structural cracks in the tail) and engine problems (carbon buildup in the oil return line). International paperwork and airspace approvals provided constant headaches. A skilled photographer, he will produce a book of his adventures from sea level to 29,413 feet, and from 100-degree deserts to sub-zero airports. Also a scientist, he was taking data on soot in the air and the world’s drinking water supply–or lack of it.