Opened in 1992, this modern architectural oddity stands on the land of the former Presidential Residence in which Eva Perón died. With its underground levels, the library's 13 floors can store up to 5 million volumes. Among its collection, the library stores 21 books printed by one of the earliest printing presses, dating from 1440 to 1500. Visit the reading room -- occupying two stories at the top of the building -- to enjoy an awe-inspiring view of Buenos Aires. The library also hosts special events in its exhibition hall and auditorium.