In pictures: Europe's cold spell

1 of 9 Icy winter weather has been sweeping across Europe. Here the snow covers the ground outside the Danish parliament.

2 of 9 It was bad weather for driving in Stuttgart, but not too bad for walking the dog.

3 of 9 In Amsterdam a cyclist also opted to walk across a bridge over the Reguliersgracht canal ...

4 of 9 ... and in Lausanne, ducks had little choice after ponds froze over.

5 of 9 Some enjoyed the weather, though - like this bear in his outdoor enclosure in Bern, Switzerland...

6 of 9 ... and a group of King penguins, in their element at a Zurich zoo.

7 of 9 A Serbian boy trudged past Serbia and Montenegro's Parliament in Belgrade as the snow fell in thick flakes.

8 of 9 The Auschwitz prison camp was even more desolate than usual when survivors marked the anniversary of its liberation from the Nazis on Tuesday.

9 of 9 And rare snowfall in London's Notting Hill neighbourhood turned the black cabs white.