Recommend addictive historical dramas

I have many many dramas on my plan to watch list but I don't seem to be able to decide what to watch next. As a student, I have limited time and I kind of panic what to watch next because I have also limited time to watch dramas and I want it to be worth it (haha). I like many different types of dramas, as you can see from my drama list but at the moment I'm craving for an addictive historical drama (the country of origin doesn't really matter - I have actually watched only sageuks and would be really interested in some Chinese historical dramas) that's full of adventure, romance, drama... It really doesn't bother me if the drama is a bit cliche and soap opera like, I like to fantasize about brave princesses and heroes anyway... hehe! :D I'm not too picky about the historical accuracy although I'm interested in the history in general. What I do mind is the good characters, good actors and some kind of production quality. I love beautiful costumes, fast-moving, addictive dramas + some fantasy elements and martial arts as well. Feel free to recommend anything you want, I will check out all the recommendations and then decide what to watch! Thank you! ^^ 
+ I haven't watched really anything over 20 episodes but I'm okay to try those, as many historical dramas are longer than 20 episodes! I'm quite of an impatient person and that's why I'm a bit worried if I can make it through them... But well, at least I can try! ^^
Here's a list of the historical dramas I've seen, and how I have rated them:

• Gu Family Book (9.5 - great characters, good plot + the fantasy elements)
• The Moon that Embraces the Sun (9.5 - loved the idea of the story although Han Ga In's acting left me a bit cold and didn't really represent what I would have wanted from the character)
• Iljimae (9.0 - so hooking! Loved Iljimae and Lee Jun Ki. Quite illogical plot twists though which made me reduce some points)
• Sungkwyunkwan Scandal (9.0 - I have actually made a review about this - very addictive and although kind of used idea (gender bender), it was used really well here. Loved the characters!)
• The Princess' Man (7.5 - really well made, good actors but I never really got into the characters - also I didn't find the female lead that interesting to follow, unfortunately. Highlight to view spoiler: Also, I really lost it when the male lead started ruthlessly killing everyone he met - I just couldn't get over it TT^TT

Again, thank you for everyone who is willing to help! n_n

I really enjoyed watching The Three Musketeers (much more than I thought I would, actually) so you could definitely give that one a shot. It's also quite short for a historical at only 12 episodes.
Also, Arang and the Magistrate is one of my favorite dramas, and it's great as a historical fantasy if you like those elements.

Of the two I have seen (Warrior Baek Dong Soo and Jumong), I wouldn't call either extremely addictive, but Warrior Baek Dong Soo certainly has its crack moments. It would've been much better if it was cut down, in my opinion. Too many filler scenes to be considered very addictive. However, it's beautifully shot and the fight scenes are glorious. The main villain was extremely annoying, though.

Jumong is very well-written but can be a snore fest at times (at least to me). I had to break the drama up into chunks to get through all of the episodes. 81 episodes is difficult to marathon, especially when it can be hard to keep all of the characters straight as in a historical drama. However, I never completely lost interest. I loved the main characters for the most part.

Dong Yi is very addictive for me ^.^

Girl, you have to watch Empress Ki. I just finished it recently and I was SO addicted. It's long, I know, but you won't mind. In fact you won't want it to end. It spans a very long period of time and you just get involved and in love with the characters and what their outcome will be. I'm the kind of person that NEEDS a happy ending, and I was put off for the longest time people said it doesn't end in typical happy ending style. But I'd just like to point out that this drama follows their whole lives. Everyone has their rise to power, power, and then fall. Everyone has an end. KWIM? So its still incredibly satisfying and you will love it. 

hello i just finished king's daughter su baek hyang and theres lots of romance in it damn nice. dong yi is really nice too but theres a middle portion that gets rather slow. i dont recommend warrior baek dong soo because its kindof boring. i myself am considering trying chi historical like prince of lan ling/condor heroes/scarlet heart too! XD i think empress ki is nice (havent watched) but the romance scenes is definitely less and not v happy ending either..