The Sphinx Observatory is the highest-built structure in Europe, at 3,571 meters (11,715 feet) above sea level near Jungfraujoch, Switzerland. It was built for science observations and experiments that require such a high altitude. Read more about the Sphinx Observatory, and see more amazing pictures at Kuriositas. Link
(Image credit: Flickr users Col Ford and Natasha de Vere)
The aiguille Du Midi cable car upperstation in Chamonix, Mont-Blanc is at 3776 m
( http://en.wikipedia.org/wiki/Aiguille_du_Midi )
and the Refuge du Gouter montain hut is 3817m :
( http://www.chamonet.com/news-and-weather/refuge-du-gouter-mont-blanc-hut-coming-along-nicely.html )
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