Donora is a small town on the side of a river valley about 25 miles south of Pittsburgh. It's a huge part of why Pittsburgh is known for steel -- or was. And it's where my grandpa grew up, where my dad grew up, and where my grandma has lived for over 60 years.
Her house is at the very top of the hill overlooking the valley. You can see over the other Pennsylvanian hills for dozens of miles on a clear day, but you can't actually see much of the valley itself -- it's too steep.
When the weather is just right, though, you can watch the valley fill up with fog, highlighting the river that brought everything to Donora and down which most of it flowed back out again. It's still one of my favorite places in the world.