Definitely Glen Coe. A gloomy damp day would best reflect the history of what happened there. There is so much history and scenery in Scotland there's no uninteresting place. I have been 4 times and love it there. By the way the best way to get the most of your visit is too rent a car and stay in a B and B. You get to see the people and level not found in a hotel. I stayed in a B and B on Sykes and after coming back from dinner we saw the owner in a field with his sheep dog speaking to the dog in galiec. Enjoy your visit you'll love every. minute.