I visited a beautifully restored and maintained castle in Northern Germany not long ago. After the tour, as I was walking through the courtyard, I noticed out

I visited a beautifully restored and maintained castle in Northern Germany not long ago. After the tour, as I was walking through the courtyard, I noticed out the corner of my eye what appeared to be a pile of horse manure. On closer inspection it was actually steel statue of a pile of horse manure, put there as a reminder of what would have covered the courtyard in its heyday.