Platte Valley State Bank - Grand Island, Nebraska
Great features of this bank building:
1. The thoroughly solid look of it. This building looks serious, sober, and permanent.
2. The use of natural colors in the construction elements. The sandy color and the muted brick color aren't trendy, which means they'll probably still look good many years from now.
3. The angled cornice. Cornices don't get their due in contemporary American architecture -- lots of buildings are designed as pure boxes. These cornices aren't very dramatic, but the way the wall angles before flattening into the roof provides a pleasant visual break (and probably hides gutters to carry rain off the roof).
4. The use of cool materials. There aren't a lot of trees around to provide shade, so the use of brick and stone probably helps keep the building reasonably cool.
What might be missing:
1. Windows. It's a bank, after all, so there may be security concerns involved (this particular corner may very well house the safe-deposit vault), but there aren't a lot of points of entry for light anywhere around the perimeter for the people inside to see the lovely sunshine and blue sky of the day.