* North America: Large portions of Canada, the northern United States, and Greenland were covered by the Laurentide Ice Sheet.
* Europe: Scandinavia, the British Isles, and much of northern Europe were covered by the Fennoscandian Ice Sheet.
* Asia: Large parts of Siberia, northern China, and the Tibetan Plateau were covered by the Siberian and other ice sheets.
* South America: The Andes Mountains had extensive glaciers, and parts of Patagonia were covered by ice.
* Antarctica: The Antarctic ice sheet, which is still present today, was much larger during the last glacial period.
However, if you're talking about older glacial periods (like the Pleistocene, which spanned roughly 2.6 million to 11,700 years ago), then even more landmasses were covered in ice. It's important to remember that the Earth has experienced many glacial periods, each with its own unique extent of ice coverage.
To give you a more accurate answer, please specify which glacial period you're interested in.
