I love it! We utilize environment and create a booming city that is in perfect harmony with nature. It is beautiful, green, clean, perfect. It couldn't be better. Unless we have an even bigger city with these new buildings...
It is incredibly pretty. Architecture was never so rewarding and fun. Thank you!
The exact requirements for this quest are unknown, but it becomes avialable either after the player researches Arcologies, or after the player has researched at least 19 of 20 Future Era technologies.
You can get any of these quests apart from the ones you have already completed.