Stranded passengers wait at major Europe airports

A combination of pictures shows empty halls of Germany's airports, (clockwise, from top L) Duesseldorf, Frankfurt, Berlin Tegel and Stuttgart, April 19, 2010. Large parts of Europe enforced no-fly rulings for a fifth day on Monday because of a huge ash cloud from an Icelandic volcano that has caused the worst air travel chaos since the September 11 attacks.[Photo/Agencies]