The Matterhorn, 4478m, and Gornergrat Observatory, Zermatt, Valais, Swiss Alps, Switzerland, Europe

Gornergrat and Matterhorn, Valais, Switzerland, Europe

Gornergrat and the Matterhorn, Zermatt, Valais, Swiss Alps, Switzerland, Europe

Star trail in the night sky on Matterhorn from observatory tower of Kulmhotel Gornergrat, Zermatt, Valais canton, Switzerland, Europe

Stars over Matterhorn viewed from the observatory tower of Kulmhotel Gornergrat, Zermatt, canton of Valais, Switzerland, Europe

Gornergrat Observatory (3100m), view of Matterhorn Peak (4478m), Swiss Alps, Zermatt, Valais, Switzerland

Tourists walk in the snow near the astronomical observatory of Gornergrat, Zermatt, Canton of Valais (Wallis), Switzerland, Europe

View from Gornergrat station to Kulmhotel, the highest hotel in the Swiss Alps (3100 m) at Gornergrat, Zermatt, Valais, Switzerland

Kulmhotel, High Altitude Research Station KOSMA and TIRGO Observatory, Gornergrat, Matterhorn, Mount Cervin, Zermatt Valais Switzerland

Gornergrat Mountain Railway at Station Gornergrat and Observatory, Zermatt, Switzerland

Observatory, Gornergrat, Zermatt, Valais, Switzerland, Europe

Gornergrat railway, Zermatt, Valais, Switzerland, Europe

Observatory, Gornergrat, Zermatt, Valais, Switzerland, Europe