We joke a lot about the cranes looming over downtown Nashville.  But the glass skyscrapers that follow them have transformed the way our city looks. There was a time when the limestone L&C tower was the tallest structure between New York and Miami. Now it’s standing in the shadow of glass.

What’s behind the evolution? And will it look the same in a century?

In this video, we talked to a historian, an engineer and Tony Giarratana — the man who’s got his eye on building the tallest skyscraper yet — to examine the glassification of downtown Nashville.