I was in London at the weekend (and it seems that as soon as I left the city descended into chaos) on a flying visit and managed to catch Rachel Whiteread's Embankment installation at Tate Modern, it was very impressive photos really don't do it justice at all you have to see it in person. That said here's my flickr gallery of photos of the installation.

Also very impressive was Catherine Sullivan's six screen video installation The Chittendens which was quite brilliantly installed using multiple layers of overlapping video.