As Lonely Planet put it so well, the definition of a great city: a place that makes virtue out of vice and knows exactly where to find fun. Welcome to Dublin. From the top floor of the Guinness Storehouse's Gravity Bar at 46 meters, Dublin looks like a jumble of different styles of architecture - not the sexiness of Paris or the stateliness of London, but within it is a spirit that exudes lots of smiles. Maybe some of those smiles started when Arthur Guinness signed a 9,000 year lease for a disused brewery at St. James's Gate for an annual rent of 45 pounds in 1759. On the tour where some 3 million pints of Guinness stout are brewed every day, one gets to taste this distinctive stout that gets its ruby red color from the roasted barley. And for beer drinkers they can celebrate in knowing that a pint of Guinness has less calories than a pint of orange juice. So maybe that is why some of the locals start their day with this breakfast of champions. The tour explains all the ingredients that go into making Guinness from yeast, barley both malted and roasted, hops and water. The ancient Irish Harp symbol was first used by Guinness and then adopted by the Irish government. Today you can see the harp symbol in the new Samuel Becket bridge over the River Liffey in Dublin. The Spire of Dublin is the tallest structure at 120 meters -- but I don't get the point. But at Trinity College I do get the point where the oldest illustrated book, The Book of Kells which is one of Ireland greatest national treasures and dates back to 800 AD. Grafton Street is one of the main pedestrian shopping, eating and drinking streets in Dublin. It is here that every block or two different musicians are performing. From classical, to Spanish, to traditional Celtic folk. The music follows one while meandering through souvenir shops and even an Apple store. And no visit to Dublin is complete without a visit to Temple Bar, where Dublin's night life and day life takes off. Here you can find one of Dublin's favorite dishes, Irish rock oysters with Guinness stout. You can even have Irish smoked salmon with Guinness dark bread which made me feel as lucky as a Leprechaun.