A tree blocks the light from a street lamp on a foggy street in London, England.

During Winter the streets of London can get very cold at night.  So cold that they sometimes get covered in snow, ice and fog.

One night, I headed home after a long day and noticed that the fog made the street lamps look like UFOs hovering at evenly-spaced distances down the road. Sometimes the trees would block them and the light would shine eerily through the leaves.  I’m sure it wasn’t too fun to drive in but it was a great time for a walk!