March 8, 2014. On March 11, 2004, 191 people headed for Atocha station in Madrid were killed when bombs destroyed four trains they were traveling on. This is the centre of the memorial, looking straight up. The clear canopy is held up by a constant air pressure - I like that, it's like the idea of eternal breath.
from Flickr http://flic.kr/p/kSf29N