Start in Western Europe and go east, zig zag all over the continent. Check out eastern europe and hit Egypt, Crete and other Meditteranean places. Jump over the middle east, hit India, then SE Asia, Thailand, head up see Hong Kong, Singapore, Japan Korea. Catch a flight back here to LA, then go to Southern Mexico and head south through Belize and Guatemala. See all the Mayan ruins, see the family I have in Nicaragua and Costa Rica. Jump over Panama and Columbia. Check out Ecuador, and the Galapagos. Go to Peru and see some crazy Inca sh;t. Check out Brazil for a while. I would then go home and collapse.
A few years and I think I could do it.