China opens World's tallest bridge, travel time reduced from two hours to two minutes | WATCH The Huajiang Grand Canyon Bridge now holds two records as it is the tallest bridge in the world and is also called the largest-span bridge to have been made in a mountainous area. New Delhi:China has opened the Huajiang Grand Canyon Bridge, now called the world's tallest bridge in Guizhou for the public. Speaking on the opening of the bridge, Zhang Yin, the head of the provincial transport department, said, "The opening of the Huajiang Grand Canyon Bridge reduces travel time between the two sides from two hours to two minutes." Huajiang Grand Canyon Bridge holds two recordsThe Huajiang Grand Canyon Bridge now reportedly holds two records. It is the tallest bridge in the world and also the largest-span bridge ever constructed in a mountainous area.