Have you been to both Shenandoah and Smoky Mountain National Parks? Which do you prefer? I'd love to spend some time in both and drive down Blue Ridge Parkway in between. Glad you got to do it and see the fall colors! Seems like this is the perfect spot for foliage right?
Scuba diving in Brazil seems exotically fun - one day when I get down there!
Barcelona is a beautiful city. La Sagrada Familia is just breathtaking. Did you feel like 4 days is enough in Barcelona? That's about how long we stayed. Our tour guide said Barcelona is the "enchantress". He came for a week and stayed for years.
Agree with you on the graffiti tour - we did that in Medellin and loved it! Same with the cable cars - that was cool too. Love your pics! We stayed in Airbnb's when there - are the hotels expensive generally?