O'Connell Bridge at the bottom of O'Connell Street in Dublin is the widest bridge (it's as wide as it's long) over the River Liffey and surely the busiest bridge of all, with traffic coming from all directions.
The River Liffey runs through the middle of Dublin on its way to the Irish Sea. Not a massive river but 60% of it's flow is diverted for drinking water or to supply industry. Many famous areas of Dublin are not too far from it's path, including the Temple Bar area. 'Hic'.
Back of another restaurant, this time Church Restaurant on the junction of Jervis Street and Mary Street Dublin. Lovely Bar/Cafe/Restaurant with quirky spiral glass covered thing outside and inside 4 levels with different themes. My favourite, the Main bar on ground level.
If you are planning to visit something "typical Dublin" you cannot go wrong with Moore Street - from Monday to Saturday dozens of traders set up their stalls, many of them specialising in fruit, vegetables and flowers. Prices tend to be reasonable to low and the typical Dublin banter is free. The permanent shops next to the stalls range from Irish family butchers to Bingo. Moore Street is a nice change from the usual Malls in the area.
Foster Place looking towards College Green Dublin, with the Parliament buildings just to the left. Apparently this street is favoured for filming period dramas because of it's cobbled surface (and it's also a cul-de-sac). It's also home to the Wax Museum.