America's most dangerous streets

... or sidewalks

I'm always quoting a study that found that walking on uneven cobblestones slows down the onset of dementia. Since you have to make mental adjustments with each step, your mind stays active.

I've also read a study that says walking on cobblestones reduces your blood pressure. But when I went to go look at the article again, I discovered that you have to walk on them barefoot. Oops. Reading details is important.

Ah, the undulating walkways of Lawrence. It's almost like going for a sail.

This concave sidewalk is really scary when it ices over in the winter.