Originally based in Parque del Buen Retiro, the Zoo Aquarium de Madrid moved to Casa de Campo in 1972, and many of the exhibits have not changed architecturally!
The pens for the animals may well be viewed as old fashioned and small compared to some of the larger more modern Zoos around the rest of the world, and they encourage you to buy and feed the animals, including elephants, with peanuts, and they willingly beg.
Despite their housing, the animals seem healthy and the architecture is VERY angular and 70s, especially the tiger pen. And they have breeding groups of rarities such as the Barbary Lion – extinct in the wild. With the birds, unlike any other Zoo I’ve been to, the Pelicans and Flamingos roam free with wild Cranes flying overhead! It’s home to over 6000 animals of 500 different species.
A neat little day out as long as you’re not too bothered by the small pens.