Searching for Reason" (En busca de la razón) by the famous Mexican artist, Sergio Bustamante, a very distinctive 60 foot high statue with three strange pillow headed figures and a ladder which two are climbing, like searching for an answer farther and above the normal limits of humanity.
Sergio Bustamante states that the sculpture was inspired by Nobel Peace Prize winner, philosopher and logician, Bertrand Arthur William Russell and his writings:

When the intensity of emotional conviction subsides, a man who is in the habit of reasoning will search for logical grounds in favour of the belief which he finds in himself.