Any must see places during a two day North Carolina trip? -

I will be in the Raleigh Durham, Greensboro, Winston Salem area for two days next week. Any sites or must see destinations?

Raleigh: Legistlative Building, Govenor s mansion(rumored to be haunted), the capital building, the history museum, the science museum.Greensboro: Guilford Courthouse, the battlefieldDurham: I guess it would be Duke Winston Salem: Old Salem