Croatian tower runner Ivan Vuletic starts the race at the 2026 Ping An Finance Center International Vertical Marathon on Saturday. Held at the 599-meter Ping An Finance Center — the tallest building in the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) — the premier event attracted over 1,500 runners from around the world to scale the building’s 3,201 steps.         P3>   Liu Xudong