I'm supremely jealous of these guys and envy of their smarts. I wish I were 25 again and had come up with this idea. Basically they got grant money to travel the world and turned it into a money making venture so they could travel the world for a second year. Well played guys.
They have also gone to some places I would like to visit but wouldn't have the nerve to right now. Best example is from this season where they went to Jordan. Would be an awesome place to go to but a little iffy right now.
EDIT: There is another similar show with three brothers called The Road Less Travelled.
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