21 May Phoenix Park , Dublin
The worlds largest enclosed urban park.
It covers 1752 acres on the Northwest of Dublin.
Phoenix Park was originally a royal deerpark.
Aras an Uachtarain , the presidents residence (formerly the Viceregal Lodge) is in the park , as well as the official residence of the US ambassador.
The park has the best zoo in Ireland.
On a tour of Ireland , if you are in Dublin , the open top bus trips give you a fleeting glance of this park.