Its a wonderful record this man has created and i am not trying to steal his thunder but anyone who loves travelling can do this :
All he or she needs are two things: Money and Time
He had both. He has tons of money( i don't know from where) and he probably doesn't have a job coz if you had a job (especially in India) taking so many vacation days is kind-of hard.
I would have done it too. If i win a big lottery , the next thing i am going to do is quit my job and go globe-trotting.