Zoo 120 years

Application commemorate 120 anniversary of the Barcelona Zoo.
Allows time travel photographs showing the evolution of different areas of the Zoo during its history.
You can also make a treasure hunt based on the location to discover the most important facts of the Zoo and its animals all having a good time, using a compass to get there.
Once you get to each of the areas we propose a series of challenges that must be solved by setting up well in animals and the environment of the Zoo.