1) The Great Lakes, consisting of Lake Superior, Lake Michigan, Lake Huron, Lake Erie, and Lake Ontario, form the largest group of freshwater lakes on Earth by total area. They are shared by the United States and Canada and are of significant ecological and economic importance.

2) The eye of a cyclone is a region of calm, relatively clear skies and light winds at the center of the storm.

3) The average person walks the equivalent of three times around the world in a lifetime.

4) The most-watched TV series finale in the United States was "MAS*H," with an estimated 105 million viewers.