Originally Posted by
Aviatrix
Turning right on red
is allowed in Germany if there is a (painted) green arrow mounted next to the traffic lights - see this German Wikipedia article for further information:
http://de.wikipedia.org/wiki/Gr%C3%BCnpfeil
This is an East German rule that was introduced country-wide after Reunification.
I'd say the green arrow is still pretty rare in the west. I occasionally see one, but people don't always now what to make of it.