Sightseeing is an essential part of traveling. While museums and monuments are the staples that tourists visit in many cities, there are many more buildings that are worth seeing. Whether you are a bookworm or not, libraries are often distinguished architectural landmarks and can provide deeper insights not only into a country's literature, but also its culture and history as a whole. Moreover, what's great is that, more often than not, they are open to the public. Here are 10 libraries worth visiting on your travels.