For some reason, up till now anyway, we have always visited Germany in winter or while passing when going to or returning from Hungary in August. So generally I have two kinds of photos from Germany: rainy/dark ones or sunny/bright ones.
Aachen was one of those cities we visited in winter (actually, I visited it alone on December 31, my girlfriend was feeling sick and was staying in our holiday home), so the pictures arrived in the rainy/dark category. However, I was not unhappy with the ones following. The rest you can find here on Pinterest.