Duke Energy Center in Charlotte, N.C., punctures the sky with its aggressive architecture. The skyline of Charlotte is an odd patchwork; there's no harmony, theme or consistency of look, design or intent. I'm no expert in urban design or architecture, but it seems a chaotic and haphazard patchwork of corporate assertions represented by steel and glass. Charlotte is relatively new, though, to the skyscraper game, so who knows how it will evolve and play out over the next few decades.

Larger version here: Takin' Care of Business