the horseshoe-shaped glass walkway in chongqing extends 87.5 ft from a cliff , allowing visitors to feel as though they are walking on air with the valley floor 2,350 ft below their feet .
the horseshoe-shaped walkway in chongqing extends 87.5 ft from the edge of a cliff , allowing visitors to feel as though they are walking on air .
with jaw-dropping panoramic views from its observation deck , it is the longest cantilever bridge in the world that