4. Langkawi Sky Bridge, Malaysia
This astonishing bridge is 210 m long, and hangs a whooping 660 m above sea level. The cutting-edge architecture of the bridge consists of it being suspended by 8 cables, all hanging from a single pylon, which towers over the bridge. It also has three curves stretches extending 25 m each, at the end of each is a triangular viewing area for you to take in the scenery.