Joanina Library

The Biblioteca Joanina is the single most famous interior in Coimbra, and it deserves the reputation. Built in the early eighteenth century and named for King John V, who paid for it, it occupies a free-standing building on the university courtyard and holds tens of thousands of old volumes in three connected halls. The first thing you notice is the colour: gilded and painted bookcases in green, red and gold, ceilings covered in trompe-l'oeil paintings that seem to open the roof to heaven, and a polished floor that reflects it all. Heavy tables of exotic wood stand between the shelves, and a portrait of the king looks down from the end of the main room. The books are protected by something more unusual than locks. A colony of small bats lives in the library and comes out at night to eat the insects that would otherwise attack the paper. Staff cover the tables with cloth at closing time to protect them from droppings, and the bats are one of the best-known stories about the place. Photography is restricted inside to protect the collection, so you rely on memory more than on a camera, and the experience is quiet and slow, with small groups moving through the halls.

Practicalities matter here, because the library controls its numbers closely. Entry is by timed slot, usually combined with the university tour, and only a limited number of people can be inside at once to protect the books from heat and humidity. Booking ahead is strongly advised, and a ticketed visit that includes both the Paço das Escolas and the library saves you from guessing which slot is available.

Arrive at your slot on time, and be prepared for a short wait outside. Staff may ask you to leave bags in a locker, and the rules about photographs are strict. The reading room is a working treasure, not a stage set, so keep your voice low, do not touch the shelves and follow the directions of the attendants. The visit itself is fairly short, usually twenty to thirty minutes inside, but it is intense, and the memory lasts longer than the visit.

Downstairs, the Academic Prison, a small and sombre cell block that once held students and staff who broke university rules, is often included. It is a useful reminder that the grand halls above sat on top of a strict disciplinary system, and it adds a darker note to a visit that is otherwise all gold and paint. Visitors who like to understand what they are looking at should also read a little about the Baroque period in Portugal beforehand, because the wealth that built the library came from Brazilian gold, and that connection explains the generous use of gilding throughout the halls.

For the best experience, go with a guide who can explain the symbolism of the ceiling paintings, the origin of the wood and the history of the collection. An expert who knows the university will point out details that a self-guided visit passes over. If you can only do one ticketed experience in Coimbra, this is a strong candidate, and combining it with the Paço das Escolas gives a morning that covers the heart of the city.

Afterwards, walk down through the old town to the Baixa for lunch, and keep the afternoon free for a slower look at the river and the Santa Clara side.