Steel wall
Repeat until complete

 
This wall on a silo, a total surface of at least 200 m2, is built from steel galvanized elements on vertical beams, all of it riveted together. One might wonder why such an intricate construction is used. I guess the involved mechanics needed a day off after completing the job.

 
 
 
 
More photos from this building in Silo (Photos 2014-2) and Silo 2 (Photos 2015-2).