The world's oldest operating bookshop, certified by Guinness since 2011, on Rua Garrett in Chiado. Founded in 1732, Livraria Bertrand has been a gathering point for Lisbon's literary life for nearly three centuries. The 18th-century interior — blue and white Azulejo panels, dark wood shelves, narrow rooms leading to further narrow rooms — is the atmosphere that other bookshops spend money trying to recreate.
The stock is primarily in Portuguese, but there is a good English-language section upstairs. A memorial plaque commemorates the writers who gathered here in the 18th and 19th centuries. Even if you have no intention of buying, it is worth stepping in for a few minutes to absorb the space. Entry is free; the books are reasonably priced.