Pipe Shed - Credit: Wikimedia Commons
The Pipe Shed in Methven, New Zealand, is a section of pipe cast in 1940 that was converted to a shed for storing explosives. The pipe was one of approximately 800 manufactured for the Rangitata Diversion Race (RDR), and is the only one that remains visible. It serves as a memorial to what was the largest public works project of its time, and is registered as a Category I structure by Heritage New Zealand. Read more on Wikipedia
Source: en.wikipedia.org