Utterly Mad

Why aren't there any games with a strong focus on urban exploration? I'm talking like GTA4 and Condemned and STALKER. Just walking into ruined old buildings, looking at relics of a time that was so close and so very far.

I might have to make a game based off of that Dan Bell guy, you head into a mall and explore maybe I'll put some creepy easter egg type stuff to spook people. I JUST WANT TO GO EXPLORE SOMEWHERE DAMMIT!