https://gulbenkian.pt/biblioteca-arte/en/staged-nature-zoo-of-zoos/

The tourist who is visiting Portugal should not limit his sight-seeing to the capital city center, though he will find in it, as we have shown, many and many things to evoke both its artistic and historic sense. […] Our car leaves Rossio, goes up the Avenida da Liberdade, […] till it reaches the Jardim Zoológico (Zoological Garden), one of the most pleasant places just outside Lisbon, and much sought by the population on holidays. These Garden has an area of 92.540 square metres and contains animals from almost all parts of the world.