The office includes a lounge that, by itself, is as big as most visiting-manager's offices.
"That's for the umpires," Piniella said, jokingly.
The Cubs coaches looked over every nook and cranny in the park. Third-base coach Mike Quade did some exploring and walked all levels, even checking out the view of the Capitol and Washington Monument from the upper levels. Cubs chairman Crane Kenney also is on this trip to see how it was done and whether to apply some of the things here to Wrigley Field.
Piniella received a tour, courtesy of Nationals general manager Jim Bowden.
"It's well done, very tasteful," Piniella said. "It's a beautiful new stadium."
He also peeked inside the home clubhouse, which has an oval shape -- like the Oval Office at the White House.
"You can actually play a night game there, and just stay overnight," Piniella said. "You can get up in the morning and have the chef cook you eggs and hash browns and bacon, and you're ready to go to work the next day without having to leave."
Carrie Muskat is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.