In Chicago, the architecture is ambitious by design

The London Guarantee Building with the Willis Tower looming behind it, as seen from the Chicago Architecture Foundation River Cruise.
The way the the story goes, Chicago earned its Windy City nickname from the hot air billowing from local politicians. Today, though, you’d be safe to assume it was inspired by the icy breeze gusting from Lake Michigan and up the Chicago River.
No matter. Arcing above us is a bluebird sky and, surrounding us, a cluster of bold towers doing their best to reach