Trinity College Long Room in Dublin, Ireland-Ireland's oldest university, Trinity College, is also the location of the largest library in Ireland. The oldest and rarest of its collection is housed in the Long Room, the largest single-chamber library in the world with over 200,000 volumes preserved inside. Aside from famously housing one of Ireland's national emblems, the Brian Boru harp (yes, the one from the Guinness logo), the Long Room made headlines again recently for serving as "unofficial" inspiration for the Jedi Archives in Star Wars Episode II: Attack of the Clones. Photo: Brett Jordan Photo 5 of 13 in Dr. Jack Thomas by Dr. Jack Thomas from Super Unique Libraries Around the World

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Trinity College Long Room in Dublin, Ireland-Ireland's oldest university, Trinity College, is also the location of the largest library in Ireland. The oldest and rarest of its collection is housed in the Long Room, the largest single-chamber library in the world with over 200,000 volumes preserved inside. Aside from famously housing one of Ireland's national emblems, the Brian Boru harp (yes, the one from the Guinness logo), the Long Room made headlines again recently for serving as "unofficial" inspiration for the Jedi Archives in Star Wars Episode II: Attack of the Clones. Photo: Brett Jordan