(220825) — SOFIA, Aug. 25, 2022 (Xinhua) — Mack Rutherford waves after landing at Sofia West Airport in Bulgaria, on Aug. 24, 2022. Mack Rutherford, 17, landed in Sofia on Wednesday after he broke the current world record for the youngest pilot to fly solo around the world. His achievement was duly recognized by the Guinness World Records, which handed him two certificates immediately after landing: for the youngest (male) person to circumnavigate the world by aircraft solo, and the youngest (male) person to circumnavigate the world in a microlight plane solo. Rutherford took off from Sofia on March 23 this year and landed again here after flying through 52 countries and logging up around 250 hours of flying time. (Photo by Marian Draganov/Xinhua)