Yes, the mythos surrounding his lightsaber and origins. I guess Maul could be boring if you don't know or aren't aware of the backstory.
Which sort of makes this line both infuriating and brilliant.
Yes, the statues are gorgeous and days can be lost just staring at all the detail. But....unless you know the back stories, you can never fully appreciate what you're looking at.
On the other hand you can make your own back story and let you imagination flow.. It's actually what I love more then anything about this line.