20 of the Most Exquisite Libraries in the World

ROYAL PORTUGUESE READING ROOM, RIO DE JANEIRO, BRAZIL

Yes, this is a library, but really, it’s more like a palace devoted to books. Its limestone exterior was inspired by the famous Jerónimos Monastery in Lisbon, where it was built before being shipped to Rio de Janeiro. And the interior is just as stunning: There’s a red, white, and blue stained glass window letting natural light in through the ceiling, while a silver, marble, and ivory altar welcomes visitors into the building.