In London it is an Eye. And in Vienna, the Riesenrad. Most of the European cities have iconic Ferris wheels as attraction or reclam.
Fernando Martín-Sánchez used to compare the water wheel to the team work. All buckets are attached to the same rim, moving solidarian and harmonic to each other. Some of them are shining on the top while others are hidden below the water while making a huge effort. At certain point, the roles will change. Very much depending on the speed and size. By then, the buckets filled with fresh water will emerge to the air and spill in a productive move.The wheel is remembering us that everything is in constant movement. And that the position of the buckets is changing again and again. The individuals are equal but their relative weight, load and height change in the different project phases. Nothing is more stable that wheel as a whole. And it is enough to lose one bucket for unbalancing the whole by shifting the stress to the closest buckets.
Every project lives in a circular cycle. And this circle is the basic understanding that binds all project members in a common doing.
Dante illustrated also his three worlds (Paradise, Purgatorio and Inferno) with circles. The absolute love, the last circle, is reached in the last verses of the Divine Comedy:
Here vigour failed the lofty fantasy:
But now was turning my desire and will,
Even as a wheel that equally is moved,
The Love which moves the sun and the other stars.