From Trinity College you can easily make it to the impressive
O'Connell Street and the equally impressive
Spire. From College Green, simply walk along Westmoreland Street and then cross O'Connell Bridge to reach O'Connell Street. There's a load to do and see in this area from the shops of
Henry Street to the historic
General Post Office and a lot of city tours leave from this area as well.
And from St. Stephens Green, if you head along St. Stephens Green North you'll reach the real Georgian part of Dublin with Leinster House (home of the government), the National Museum and the National Library (all located on Kildare Street). These are all alongside the Merrion Square area where you'll find the National Gallery, the Natural History Museum and the Oscar Wilde Memorial to name but a few.