Feast Your Eyes on the World's Largest Spiral Escalator
https://www-newz.blogspot.com/2015/03/feast-your-eyes-on-world-largest-spiral.html
Japanese firm Mitsubishi Electric is the only manufacturer of spiral escalators in the world—but there aren't many. Now, a shopping mall in Shanghai has opened up two new iterations, each of which reach seven stories up into the building.
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