A woman watches a mini race car at the 88th Thessaloniki International Fair, in Thessaloniki, Greece, on Sep. 8, 2024. The 88th Thessaloniki International Fair, the largest annual trade fair in Greece, is held here from Sept. 7 to 15. (Xinhua/Marios Lolos)

Screens showing images of CERN are seen at the 88th Thessaloniki International Fair, in Thessaloniki, Greece, on Sep. 8, 2024. The 88th Thessaloniki International Fair, the largest annual trade fair in Greece, is held here from Sept. 7 to 15. (Xinhua/Marios Lolos)