Slate's slideshow on architectural failures caught my eye this morning.
Apparently the current renovations to the exterior of the NGA's East Building were made necessary by an architectural flaw, and will cost $85 million to fix. (WSJ)
The engineer in me delights when architects, rather than engineers, get their share of blame for failed designs. But we're looking at another 3 years of scaffolding on the NGA East Building while they finish renovations. So, really, nobody is happy.