I have seen the cycloramas in Atlanta (1966) and Gettysburg (1971). Truly awe-inspiring art forms.
I was in grade school in AL when the Centennial of the Civil War was observed. My strongest memories centered around the fall fairs where the hot souvenir items on the midway were federal and confederate kepis and broad-rim hats. I also recall the Sunday edition of the local newspaper - The Columbus Ledger. Between 1961-65, it always featured articles about the Civil War.
It will be interesting to watch over the coming years the fate of the Confederate memorial carving on Stone Mountain near Stone Mountain, GA. The Daughters of the Confederacy were instrumental in making that happen. Stone Mountain also had a history 100 years ago of being a hot zone for KKK activity. With the changing U.S. demographics and PC in hurricane mode, I, like some others, wonder how much longer these types of memorials will last. Keep an eye on the statues on Monument Avenue in Richmond, VA, also.
What few observances of the war have focused on the roles of women and minorities in the great conflict. Progressive historical revisionism at its best. I suspect that within another 75 years hardly any physical trace of battlefields or museums that shelter any memory of the Civil War will remain. That will be a shame, for the honor and valor of the men who fought on both sides deserve to be remembered, despite what they fought over.