You may have noticed that the Guggenheim Museum has been shrouded in mesh netting lately, and it makes sense the museum would be undergoing some facade/maintenance work. The NY Times, though, has this amazing graphic showing the cracks in the museum's walls. The Guggenheim explains the restoration online (and with podcast- MP3) and also has an exhibit about "Restoring a Masterpiece."
Don't worry, though - the Times reports the structure is "structurally sound." And here's a panorama Jake stitched together from last year's Zaha Hadid show.