"Yes, you can attend Marymount Manhatten College with a GED. They accept GED's with no problem. It is just as good as an actual high school diploma. They are a great school as well."
I know that in the state of Georgia when you reach the age of 62 you can go tuition free at any state owned institution of higher learning (technical, college or university). There are a few others...
There 9 of them. George Washington, Andrew Jackson, Andrew Johnson, Abraham Lincoln, Grover Cleveland, Martin Van Buren, Millard Fillmore, and Zachary Taylor.