I've always enjoyed reading about the stories hidden in buildings. They're not just four walls; they're witnesses to history. Sipping a coffee or a good beer on a sunny day in Dublin, surrounded by smiling young people, it's hard to imagine that the city's beautiful post office burned down in 1916. Most Dubliners walk past the General Post Office every day without thinking about its past, but almost everyone knows that it was the headquarters of the rebels who led the Easter Rising.