Zebras in Liverpool

Yesterday morning, we went to the Beatles Museum. You couldn't really skip that when you're in Liverpool... On our way out of the museum we saw the funniest street sign! I think at least half of us had to stop and take pictures:

What the heck does that mean???

We all thought it was some sort of joke since it was outside the Beatles Museum. I didn't find out until today what it means: A Zebra Crossing is a black and white striped pedestrian crossing, and when it's "humped" that means there is a speed bump with it! Imagine that! England has humped zebra crossings!!