The eastern end of the park includes two separate, enclosed play areas for young children.

[1] Though it was originally planned as the point from which all distances in North America would be measured (a zero milepost), it was not ultimately utilized for this purpose.

[3] During the Civil War, it became the site where Lincoln Hospital was built to take care of the wounded Union Army soldiers.

... Then there is Carver hospital, larger still, a wall'd and military city regularly laid out, and guarded by squads of sentries.

In 1867, Congress authorized the grounds to be called Lincoln Square as a memorial to the former president; it was the first public site to bear his name.