Ireland may have been neutral during World War II but that didn't mean we weren't prepared for any bombs to fall. Dozens of air raid shelters were built here during the 1940s with the remnants of some of them still visible. That includes an unusual looking mound at Merrion Square Park in the heart of the city. Shelters were also built along O'Connell Street, in the basement of a clothes shop on Grafton Street and even in a cinema in the city. Emma Tyrrell has been finding out more about the capital's air raid shelters.