World Capitol Project is alive and well. Trust me. I've been obsessed with the same Sketchup project for over 2 years now. I doubt I'll get over it anytime soon.
As a matter of fact, when I look back on the progress of my Sketchup model's progress, each part of it conjures up recollection of what my life was like at that particular time when I was designing it. In an odd sort of way, my city is sort of like the growth rings on a tree.
On the plus side, because of Google Sketchup, the cost of creating monuments which impress and endure has fallen significantly since the Pyramid building days of ancient Egypt. Woohoo.