The Matterhorn in Switzerland was carved away by glacial erosion.
—Unattributed photograph /NSIDC

Aretes and horns around Mounta Caubvick, Newfoundland, Canada.
—Source: Natural Resources Canada. Photograph by Hazen Russel. Copyright Terrain Sciences Division, Geological Survey of Canada.

Cirque on Cirque Mountain in the Torngat Mountains, Newfoundland, Canada.
—Source: Natural Resources Canada. Photograph by Hazen Russel. Copyright Terrain Sciences Division, Geological Survey of Canada.

Ice covered cirques, Transantarctic Mountains, Antarctic.
—Source: Tom Lowell's Glacier Image Database, University of Cincinnati.