Langkawi archipelago, Malaysia
While many long spans around the world are called 'sky bridges,' few can compete with the sheer spectacle of this treetop marvel in Malaysia. Curving over mountain peaks and rainforest canopies for more than 400 feet, this pedestrian bridge is a cable-stayed steel span held aloft by a single, towering, pylon. The views are predictably spectacular: From this vantage point over 2,000 feet above sea level, a vast expanse of the Strait of Malacca is visible, as are many of the other islands here in the Langkawi archipelago. Glass floor panels in the middle section of the bridge allow for views of a different kind—roughly 300 feet straight down into the forest below.