Although small, Kotor has massive personality, and stunning views. The old town is hidden behind the major fortress wall, and nestled inside are long narrow alleys and larger courtyards still preserved. It's cozy. Kotor still attracts tourists, but not the overrun crowds found in Dubrovink. It seems like most people in Montenegro are europeans. I only met a few American's.
The main attraction is the fortress wall. 1350 steps to the top. In the first photo above, you will see a small opening in the clouds, to the left is a small tiny flag at the top! In the beginning, the views are stunning, and you take pictures of anything. Progressively, you take the same photos all the way up as the views get better and better. It was challenging for me to narrow them down :) Kotor's fortress trail is only a fraction of the full course. I passed a guy who had walked over the mountain and clocked 18,000 steps. Ouch.