Amongst the most popular attractions is Kilmainham Gaol.  The website information about the gaol is as follows:

Kilmainham Gaol opened in 1796 as the new County Gaol for Dublin. It closed its doors in 1924.

Today the building symbolises the tradition of militant and constitutional nationalism from the rebellion of 1798 to the Irish Civil War of 1922-23. Leaders of the rebellions of 1798, 1803, 1848,1867 and 1916 were detained and in some cases executed here. Many members of the Irish Republican movement during the Anglo-Irish War (1919-21) were also detained in Kilmainham Gaol, guarded by British troops. Names such as Henry Joy McCracken, Robert Emmet, Anne Devlin, Charles Stewart Parnell and the leaders of 1916 will always be associated with the building.

It should not be forgotten however that, as a county gaol, Kilmainham held thousands of ordinary men, women and children. Their crimes ranged from petty offences such as stealing food to more serious crimes such as murder or rape. Convicts from many parts of Ireland were held here for long periods waiting to be transported to Australia.

Many visitors to Dublin are fascinated by the history of the building. It costs 8 euros for a guided tour of the building, but you have to book in advance. In 2016 the gaol received nearly 400,000 visitors. Seeing that the entry charge is quite cheap, many tourists are likely to include a visit to the gaol during their stay.

The most popular attraction in Dublin is the Guinness Storehouse. In fact, it is the most popular attraction in Ireland with 1,667,000 visitors in 2016. Guinness is the famous dark beer which is sold all over the world. A special building has been constructed to provide a number of different visitor experiences, starting from 17.50 euros if booked in advance.

The advert for the Guinness Storehouse experience reads:

Find out exactly what it takes to make beer the Guinness® way. From our famous strain of yeast to the passion shared by all our brewers, we go to extraordinary lengths to bring you the world's number-one stout.  Find out more about how we have shaped Dublin city.

Also, there are lots of public squares and open spaces through which tourists can stroll. These include the grounds of the Botanic Gardens. The most famous square is Stephen’s Green. Due to these attractions being free, they are popular with many tourists.

The famous night life of Dublin is centred around Temple Bar. This area is located to the south of the River Liffey and is a network of streets with bars, night-clubs and restaurants which are packed with locals and tourists every evening.

The other important area worth mentioning is Grafton Street, which is the main shopping area in the city.