One of the things that holds the most appeal for me in the science of geology is the physical expression of deformation. Folds are pretty! I love to see folding in rocks, at all scales. Today I saw a beautiful photo of folding in response to deformation that isn't in a rock. Go over to Dave's Landslide Blog for some amazing photos of the bending of some rail-way track in New Zealand in response to their large earthquake earlier this year.