Introducing the capital of Ireland, Dublin. The city is one of the largest in the country and is nestled around the mouth of the Liffey River. Dublin like any other European city is home to many historical buildings that are a part of Europe’s age old ancient history. The biggest draw to Dublin has to be the people, they’re the reason why Dublin was nominated and voted as the top 10 friendly cities in the world. Everyone loves a friendly place to visit. Explore the Guinness Storehouse, Temple Bar, Dublin Castle, Kilmainham Gaol - an old Irish prison. To plan a vacation to Dublin, book flights today. Summer (Jun–Sep) is mild to warm and the peak travel time. Winter (Dec–Feb) is cold and wet.