As Ken said, ride the Million Dollar Highway from Ouray to Durango in Colorado, sheer box canyon cliffs with no guard rail. I'm scared of heights but still managed it on a motorcycle. When in Durango you can get a ticket to ride in the steam locomotive cab from Durango to Silverton, about a 3.5 hour ride. They will even let you shovel the coal. Locomotive ride is $1000, but worth it, they need a days notice to get your overalls. Enjoy. Wish I could meet you there. I will be on Amtrak mid-October.
