Dublin is the capital and largest city of Ireland, with a population of 1.6 million. It is a young, vibrant city with a blend of history and modernity. Dublin has a friendly population and is surrounded by mountains, countryside, and seaside that can be reached within 20 minutes of the city center. The document provides information on Dublin's history, cost of living, jobs, accommodation, and things to see and do, including its cultural sites, festivals, sports, shopping, and day trips outside the city.