Our Dad recently had the kids come to his work to get a tour of the new building. It reminded me of two documentaries I'd seen of Google and Pixar, which describe the importance of play in the workplace to help creativity.
Interactive sensored televisions in the walkways
A road that goes under the building
A camera that follows the person in the room as they walk around.
The stuff for the interactive white board that is on a side wall
Pixar:
Google: