But they're not alone, they brought their dog along for the ride too.
Guillaume Dutilh says he and his wife wanted to make travel journalism a bigger part of their lifestyle, so they decided build a mobile home. Dutilh says his wife enjoys writing and he enjoys photography.
Despite having no prior home building experience, it took the couple just a year to build the house from scratch.
Dutilh and his wife have already driven through Arizona. He says they stopped in Tucson to visit small shops and a farmer's market.
Follow their journey here: www.tinyhousegiantjourney.com