I think the Visitor Center is a strange looking building, and could be confused with a storm shelter, a warehouse, a prison, a school. That's not barbed wire around the roof, it's a fence around the tallgrass growing on the roof. George thinks it was designed to match the landscape. You decide.
They have buffalo at the Preserve, but they've moved them to another pasture. We watched small brown dots move up and over a hill. If you really want to see them, I suggest binoculars or a really good imagination.Tallgrass Prairie NP