First time visit for wife and I...flew into/out of Jackson. Grand Tetons were incredible, as was Yellowstone, amazing geological formations.
But we've all seen the amazing scenery, so on to the other (good) stuff, the Buffalo Bill Museum(s)in Cody, and the Firearms Museum!
A couple days later, after staying at Thermopolis, on our way back to Jackson we had time for another gem, the National Museum of Military Vehicles, close to Dubois.
https://imgur.com/a/9jyGkGb

Lived in Cody for 11 years between 1986-97. Some of the best years of our life's.
Go up there as often as I can. Already made 2 trips up there this year in May and June. Drift boat fishing on Big Horn thru Thermopolis in May, and tri-basin small stream fishing for cut-throats in early June.