The world's newest, longest aerial footbridge offers jaw-dropping views of the Swiss Alps. Just don't look down... http://on.natgeo.com/2wcd0uO pic.twitter.com/mRYSnFFmsz

The world's newest, longest aerial footbridge offers jaw-dropping views of the Swiss Alps. Just don't look down... http://on.natgeo.com/2wcd0uO  http://pic.twitter.com/mRYSnFFmsz

https://twitter.com/NatGeoTravel/status/897986543557779460