"It was great," Callen said. "The campus was awesome, very beautiful. I had a great time."
Even though he has only taken one official visit, Callen knows he is drawing close to a decision.
"I'm trying not to really give myself any deadlines," Callen said. "But if everything goes how it should, I think I will making my decision this week."
He added, "I would love to have my recruiting finished for when the playoffs come."
Callen has double digit offers, but has narrowed them down into a top three.
And all three have their unique advantages for the Hinsdale, Ill., prospect.
"NIU and Western Michigan were both very similar with their campuses," Callen said. "Where as Ohio kind of breaks the mold for a typical MAC school."
Stay on Scout.com for the latest on Callen as he draws close to making his decision.