Oh, Amarillo you have so much that is just strange. Most of it is thanks to the eccentric Stanley Marsh 3. If you see something weird around Amarillo it was probably something that he came up with. Seriously it is.
You probably drive by these all the time. Heck, you may not have even noticed them. They are like the Cadillac Ranch. You could miss it all off the highway unless you know they are there or looking for them.