Another Day, Another Hint

Time for a second hint.

There have been some good guesses, but I'm not going to give away whether or not any of them are on the money, or the bauble as is the case.

Just for the fun of it, here is another image to help you figure out what that famous landmark could be. I'm not going to tell you what it is, but I'm pretty sure from this photo you can at least pick it out, if not name it. Hint: It's somewhat imposing and a one of Wallonia's major historical sites.

Any more thoughts as to where this is?