moment, explore a museum flat preserved exactly as it was almost 100 years ago, tune into the world of vintage radio in a Martello Tower, spot Dublin's subterranean river, or post your thoughts in a mystery letterbox. Dublin offers endless opportunities for getting off the tourist grid - for peering into the city's fascinating past and present. All you need to know is where to look ... and who to ask for. Secret Dublin - An Unusual Guide is an indispensable resource for those who thought they knew everything about the city, or who want to discover its hidden treasures. Skip the crowds and cliches, and really get beneath the city's skin...