"I have no idea where I'm going," said Pena, who called Wrigley his home ballpark two seasons ago.
Houston's three-game road trip to Chicago is the first time the 12-year veteran has ever been inside Wrigley's close-quartered visitors' clubhouse, and he said it feels weird to be on the other side of the historic park.
"I've only been on the home side, obviously," Pena said. "It's honestly an odyssey trying to get down to the field. I'm like, 'Oh this is cool, I have to take like at least 15 turns.' But it's part of the charm of this baseball park."
Pena was excited when he heard the team's family road trip would be on the Astros' three-game road trip to Chicago. His wife loves the city and didn't want to miss a chance to return during the summer.
"She loves it. She wouldn't miss it for the world, the opportunity to come out to Chicago," Pena said. "It's just beautiful, the contrast of having the lake and the big sky rises."
Houston's left-handed slugger said playing at Wrigley Field is special, but is encouraged the team is moving along with proposed renovations for the 100-year-old ballpark.
"What a great opportunity it is for whoever is designing it to be creative and make a piece of art. It's already pretty much a masterpiece, so it can only improve," Pena said. "It's going to be way better as far as the facilities are concerned, but I know they're going to keep the essence of what Wrigley Field is all about. It's going to be the best of both words at the end of the day."
Pena is a career .207 hitter at Wrigley Field, but has 12 home runs and 33 RBIs within its confines. He went 0-for-4 on Friday and was not in Houston's starting lineup for Saturday's game.
Ethan Asofsky is an associate reporter for MLB.com.
This story was not subject to the approval of Major League Baseball or its clubs.