Only when I got my first Huawei phone I started to experiment with B&W mode on a phone camera. I found it exceptional. I stared to use it for portraits first to create a smooth finish and atmosphere.
￼￼￼￼￼￼Then moved to landscapes to highlight architecture and create a moody effect. Here are some examples of my experiments. Most taken in Somerset, UK.
Also "Impact" filter on your normal camera setting is great for taking pictures of architecture. Scared to use it whilst taking a photo? Try it after whilst editing ;-)
Share your black and white photographs below.