As I was planning my upcoming cycling adventure, I cam across a story about the largest pile of empty oil cans in the world located in Casselton, ND. Built in 1933, the pile has been a sort of attraction for the town for years. In April the current owner challenged the pile's existence and gave the ultimatum that it should be moved by May 29 or be destroyed. Folks in Casselton got moving and just made the deadline by moving the pile intact to a temporary location. Currently they are taking donations to find this specimen a permanent home.
I should note I found a lot of other weird and wonderful attraction on Roadside America. This site is a hoot to peruse and despite the high fuel surcharges makes me want to see some of them. Hopefully on my bike trip I'll see a few and show them to you here.