First and formost, I want to say that I envy your free spirit. I love it that you have a passion to explore, but more importantly reflect on the awesome nature of this great world we live in. I also thank you for sharing your experience with us.
I only wish I could do what you do. Being a middle 30 something married male with a 45-50 hour a week business job, I don't have the freedome you do. Appreciate what you have, and the experiences you encounter because you will appreciate them as you get older.
I will anxiously await your next adventure. Have you thought about riding the historic Route 66?
http://www.historic66.com/