At last we went up there the other day and spent some time at the rim. It is amazing to live 10 mins from the rim but rarely go there. In my defense I am terrified about having a 2.5 year old at the rim.
Here is a historic photo of the El Tovar Hotel at the rim and the next is today. They have some great food here.
Depending on the time of year and day the canyon changes. The colors vary and the views intensify or recede.
There is an amazing California Condor program here. That has been fairly successful. The birds went from 20 pairs to more than 60 now. Interestingly they have found now that some birds are getting lead poisoning from eating remains left from hunters using lead bullets. There is a new movement to use unleaded shot when hunting out here now.
That was my contribution to anyone who needs a wine and cheese tidbit to throw out at your next party.