Well, since you mention it, today one of Madrd's tallest buildings was completely destroyed by fire. Fortunately nobody was seriously hurt and the building didn't collapse because the structure was made of concrete rather than steel. The fire is supposed to have been caused by an electrical short-circuit.
Curiously enough, 20 out of 32 stories were leased by audit firm Deloitte, who also occupied some space in the twin towers.
http://news.yahoo.com/news?tmpl=story&u=/ap/20050213/ap_on_re_eu/spain_building_fire_13
