CNN's John Sutter moved to Philadelphia 10 years ago. He says there are no mountains in the city, and his back deck doesn't even have a patch of grass. The view from his townhouse overlooks an apartment building that is largely populated by Wharton MBA students. "We actually had to install an awning to prevent head injury," he said.
Is a walk through the city as good as a walk through the woods? Who’s most likely to die while taking a selfie? And how does Angela protect herself from the beer cans falling onto her deck?