this artist's concept of world unity intrigues me:
The Longitudinal Installation
I will place 12 pairs of shoes in a circle around the ceremonial South Pole as a temporary installation. Placing the shoes next to each other as a proxy for people across the globe, I aim to conceptually diminish the distance between them.
-- Xavier Cortada
We are one global community. Creating this installation in a continent with no borders, the artist aims to diminish the man-made barriers in the world above it. Voices simultaneously stand in their place (longitude) around the world and inches away from one another.