From the opulent to the quirky, take in some of the world's most stunning libraries http://on.natgeo.com/2zVkBwv pic.twitter.com/QuQa3m1vMe

From the opulent to the quirky, take in some of the world's most stunning libraries http://on.natgeo.com/2zVkBwv  http://pic.twitter.com/QuQa3m1vMe

https://twitter.com/NatGeoTravel/status/924667151968903168