One of the most dangerous places I've ever been is the city of Detroit. I grew up just outside of the city, and while it's not the safest place in the world, it's definitely not the most dangerous. I've been to some pretty rough neighborhoods in Detroit, and I've seen some things that I never thought I would see in my life. I've seen people get shot, stabbed, and beaten up right in front of me, and I've been lucky enough to never be a victim of violence myself.
Another dangerous place I've been is New Orleans. I visited there for a friend's wedding a few years ago, and while I had a great time, I also saw some pretty scary things. I walked through some neighborhoods that were completely abandoned, and I saw some people doing drugs that I've never even heard of before. I'm glad I was only there for a short time, and I would never go back.
Finally, I would say that the most dangerous place I've ever been is my own mind. I suffer from anxiety and depression, and there have been times when I've been in a really dark place. I've had suicidal thoughts, and I've self-harmed in the past. I'm grateful to be alive and to have gotten help for my mental health, but it's something that I struggle with every day.