The family began the series with a visit to Philadelphia.

There, they saw the Liberty Bell, the National Constitution Center, met with Interior Secretary Doug Burgum, and, of course, indulged in a Philly Cheesesteak. The episode ended with a race up the steps in front of the Philadelphia Museum of Art, also known as the “Rocky steps,” which were made famous by the 1976 film Rocky.

But the YouTube series is about more than just a family trekking across the United States. It highlights faith and reflection on the nation’s history. The family is regularly seen praying before meals and bedtime, and emphasizing kindness toward one another.

In the first episode, Duffy described it as “controlled chaos,” which his wife retitled “beautiful mess.”

“Catholicism to us is everything. It’s the basis of our marriage, it’s the basis of our family,” Rachel said in episode 2 when the family heads to Boston.

Their 18-year-old daughter, Paloma, expressed interest in attending Harvard College and talked to Duffy about it in the kitchen of their home, as they made plans to visit the school.

“If I do get in, I feel like you can’t say no,” Paloma said.

“Me and Mom can say no,” Duffy said.

Rachel goes on to describe, in sit-down interview style, the time she and Duffy have spent nurturing and raising their children in an environment “steeped in faith and values.”

“If I send you there, I think what happens is they have professionalized figuring out how they can take good young girls like you and, I think, corrupt their minds,” Duffy said to Paloma in the kitchen.

Paloma argued that with her conservative upbringing, attending Harvard would give her a more well-rounded worldview.

“But they’re so good at it, you’ll see young people go to a conservative school with a conservative family, and they get perverted and contorted,” Duffy argued.

Paloma said she can see where her parents are coming from, but thinks they may be “close-minded” and that one school cannot undo all the years of parenting.

“We have a saying in our house, and I say it all the time to the kids: ‘My job isn’t to get you into Harvard; it’s to get you into heaven,’” Rachel said.

The family continued their conversations and went to the Harvard campus. They visited the Catholic Church there and met with a priest about the Catholic environment on campus and the student Catholic Center.

WASHINGTON SECRETS — MEET THE DUFFIES: TRUMP’S TRANSPORTATION SECRETARY TAKES HIS FAMILY ON A ROMP THROUGH AMERICA

All six episodes are available to watch and include the family’s adventures in Boston, Wyoming, Montana, Charleston, Texas, and Arizona.

Part of the program also includes a Great American Road Trip website, where families can plan their own trip and see highlights of the best stops in America.