The Eiger, Guggi and Giesen Glaciers are pictured near the Jungfrau between 1890 and 1900 in Wengen, Switzerland. (Photo: Library of Congress/Handout via Reuters) The Eiger, Guggi and Giesen Glaciers are pictured near the Jungfrau in the Swiss Alps in Wengen, Switzerland Aug. 27, 2019. (Photo: Denis Balibouse/Reuters)