I've seen workplaces with fancy cafeterias, jogging paths, gyms, and even stress-reduction rooms where you can go to scream and punch bags.
Nice, but this is what I would really like to see in the workplace:
The monastery: A section in which silence is the rule and where rooms and gardens are designed solely for contemplation.
Idea rooms: These sound-proof pods would be more informal and comfortable than the average conference room. They would be filled with white boards and flip charts and any other item conducive to brainstorming.
The history room: This room would have charts on which various projects can be easily updated and followed. It would also contain volumes with summaries of decisions as well as "lessons learned" accounts by top performers who have left the organization.
What would you want?