On October 22, 2023, while I was spending a week in London, I went out for an evening walk when I noticed the moon looking very different than I was used to seeing it. It looked like it was sliced straight in half. I snapped this photo with my iPhone.
A few seconds later, I grabbed my Nikon camera and took another photo. I was mesmerized by this moon in its first quarter phase because I couldn't recall ever seeing it with such a defined, straight up and down slice. From where I live in Arizona, the first and last quarter moon is always at a slight angle.
So I braced my camera against a sign post, extended the telephoto lens to the max and snapped a few more photos.
I did some research and discovered that the same moon does look different depending on where it is observed on our planet.
There is more information on moon phases here and here.
It's funny how something so common to all of us can look so different. It inspired me to do some research.