While an artist-in-residence at the Zentrum für Kunst and Urbanistik in Berlin, I created and performed a site-specific durational piece utilizing a wall resting at ZK/U’s perimeter. I walked on top of a single stretch of wall in one direction for 18 hours and 51 minutes. The walk would normally take less than five minutes to complete at a regular pace. I began the piece at 3am on August 13, 2012 and performed without sitting down, speaking, or taking breaks. I had no clock, food or water with me on the wall. Interested in how observers would interact with the work, I left several elements up to chance, such as how to cross a large gap in the wall without coming down and shedding layers of necessary clothing I could not walk backward to retrieve as night became day and night again.