Suomenlinnan Muuri, 3

Ah, that's the sad story of Prince Jaakko and how he got a couple of great doors dirty cheap, and only then wondered if they would fit the doorways.

And what the people thought seeing the brick-laying was, "Oh, it's royalty at work, again."

Or so it is said, if one believes liars.

Here's the explanation from my Finnish-American friend. I'm afraid it's not a happy story:

It was a very over populated place during the Finnish civil war. A lot of people died there.
It's a fortress.

linna = castle