What mountains have you climbed?

The most recent one I climbed was Hallasan. When I went on a trip to Jeju Island, I didn't plan to, but the desire to climb it was stronger than the desire not to, so I ended up climbing it. Originally, I wasn't going to climb much, but at some point, I went up to what I guess you'd call the flat part, and it got so cold I had to descend. I was eating some dried meat there when a crow suddenly flew in, hovered nearby, then flew towards me, and I chased it away with my hiking stick lol. I'm curious about what mountains you all have climbed! Please excuse any spelling mistakes.