The Infinite Staircase sculpture titled Umschreibung was designed by Olafur Eliasson. The staircase can be found at the entrance of the KPMG office building in Munich, Germany. Photo taken by Christian Krieglsteiner.
This green "Eye" is formed by a tall spiral staircase in a brick tower, reaching toward the bell inside the Lamberti Tower, Verona Italy. (You are looking upward into the bell tower:) By Davide Lombardi