Landmarks Event- Europe 1, #30 White Tower of Thessaloniki, till Dec 20 – [06.12] Now with hints!

Bump for another landmark visited and solved!
I was curious what puzzle will you prepare for this event -- well, I could have guessed:), but I like the idea! Thanks for the puzzle and giveaways.

I have no idea what the answer of Q1 is. "A year when this emperor died" or "the two numbers" or "the emperor's name" or else?

Is Q4 www-able? I tried averything I could find. :/

Stuck on Q2 and Q4 (in this one i don't event understand the question :/... i need to improve my english)

Bump! :)

I am also stuck on Q4.

Bump for unstuck on Q4. Took me a while.

Please, any hint for Q2 and Q4?

Can you give a hint for Q2 and Q4 (or expand the list of acceptable answers for Q4)?

Let me cite @jeffhowe's guidelines for the landmark puzzles: "the goal is more for us to learn and experience and not make others be "stuck" in difficult puzzles."
Considering that only 6 people were able to solve it in almost 2 weeks, some hints would be very much appreciated. I for my part spent way too much time on it (tried last week for the first time) solving only 1 out of the 4 questions. Please keep in mind that this is "only" 1/5 for the weeks set of puzzles and only 1/20 of the month's set.
Without any actual tips this is just way too hard and unfortunately quite frustrating. And no, I can't just quit since I need to solve it for the weekly/monthly ITH.

I am also stuck on Q4 :(

Hint helped! Solved, thank you!

I don't understand what you are asking for in question 4.

Also, are the dimensions in question 1 in meter, or in foot?

Bump

Same here, I dont understand Q4, although I read the hint.
Do you want to know which material the collectible itself is made off? Or the type / color of the ink, like redsweater already asked?

Bump for solved.

It took awhile to figure what you were even asking in Q4. Now solved. But. I have no idea what I'm supposed to be doing with the reveled note once the 4 questions are solved. Is this a further puzzle to be solved?

edit. Ah. the first line is the passphrase. ok then. Is the 2nd line another puzzle?

Bump for solved. My comments:

Answer to question 1 has nothing to do with the tower, except for the numbers, which amounts to brute force and checking Wikipedia.
Question 2 is inaccessible to general audience - people who haven't played the game - without the hints.
Question 3 is most doable, but again, is not that related to the tower.
Question 4 is really hard to search without the hint.

I agree to some of nhahtdh's comments.

• Q1: Checking Wikipedia (for the specific year) helped me to solve this one in a few mins.
• Q2: I still do not know what color the tower actually has. Just entered the names of all "animals" using brute force. Also in my opinion this color differs from the tower's color.
• Q3: Quite doable. I liked this one.
• Q4: Quite easy when you check the proper "image", which is the most difficult part here.

Another positive thing: No formatting issues! :-)

Anyway, thanks for your efforts on this puzzle!