Observatory Examines Cosmic Rays One of the most thrilling mountain trips in the world comes into being as a serial tramway begins operations, supplying one of Europe's most famous observatories, atop the Pie du Midi. Various objective and subjective views of cable car in the lovely snow-covered French Alps. It travels to the top of a high mountain to the observatory that sits there. VS observatory dome opening, man looking through telescope. Man wearing headphones talks into radio microphone. Views of snowy Alpine mountains.