The Duggars aren't  your average family. In fact, they've over six times the size of an average family.  And while raising 18 kids can be a challenge, for the Duggars, it comes with more than its share of rewards.  In season 3, the Duggars hit the  road with trips to North Carolina, New York City, Washington, DC, Oklahoma and Tennessee.  They also celebrate closer to home with birthday parties, camping trips, hockey games and farm visits.  And a Duggar first, as they welcome the arrival of their first GrandDuggar, baby Mckynzie.