There is this wonderful place I have visited since a child: the Cincinnati Nature Center. Story goes that this was once a personal residence and that the owner started planting and naturalizing daffodils many, many years ago. The number of bulbs is amazing – sometime after WW1, they held a festival and sold 15,000 cut daffodils in one day. The plantings, started in 1899, have been multiplying ever since. Come spring, this is a Must Visit place for all in the vicinity.