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Journalists and employees visit the 'Step into the Void' installation as they attend a press visit at the Aiguille du Midi mountain peak above Chamonix, in the French Alps

Journalists and employees, wearing slippers to protect the glass floor, visit the 'Step into the Void' installation as they attend a press visit at the Aiguille du Midi mountain peak above Chamonix, in the French Alps, December 17, 2013. The Chamonix Skywalk is a five-sided glass structure installed on the top terrace of the Aiguille du Midi (3842m), with a 1,000 metre drop below, where visitors can step out from the terrace, giving the visitors the impression of standing in the void. The glass room will open to the public on December 21, 2013. REUTERS/Robert Pratta (FRANCE - Tags: SOCIETY TRAVEL CITYSCAPE)

Floating above the French Alps in a glass box

Yahoo Canada News

The CN Tower's glass floor has nothing on this: Visitors to Aiguille du Midi mountain peak in the French Alps can feel like they're walking above the mountain peaks in the 'Step into the Void' installation. The glass enclosure is 1,035 metres high on Mont Blanc, which is the tallest mountain in Europe. It takes two cable cars to reach the attraction.