Take the Staircase Down to the Clouds to Fetch a Pail of Water

When the wells go dry and the only source of clean water is in the sky, there's one solution. A daily trek up and down a single staircase to get what's needed.

This is "down to the clouds and collect sky from a well" by Tiesei, an Escher-like work that flips sky and ground, leaving only the person as a way to orient yourself.

Take the Staircase Down to the Clouds to Fetch a Pail of Water