I don't know if anyone has done the "Transcending the transmundane" quest, but the Blackreach/Alfstand dungeon is HUGE and it's amazing (When I say it's huge, I mean it literally spans about an 8th or more of the province underground). This is mine ATM but what are your favourites?

When I realized that sheer size of Blackreach my mind was blown a bit. I think the Dwemer dungeons in general are some of my favorites. I like the setting a lot.

Anyone?

Bleak falls barrow so far.
ive been in blackreach but only enough for that quest, mostly because i forgot how to get in there D:

I've heard big things about Blackreach, I'm looking forward to discovering it myself. Also looking forward to seeing all that Labyrinthian has to offer, I've only seen it from surface level so far.

My own personal favourite... hmm, that's quite tricky. I loved Ragnvald, it was just a random dungeon I stumbled across which had an awesome mini-boss/boss structure, and gave me my first Dragon Priest mask (a brilliant one at that, which I still wear now). I also loved Folgunthur, because it kicked off the Forbidden Legends quest chain for me, which I loved.

Mzinchaleft was awesome too, mainly for the sheer unexpectedness of the final boss (I'd never even seen one before). I like Dwemer ruins a lot. Speaking of which I adored Nchuand-Zel, the Dwemer ruin under Markarth. I was very under-levelled when I went in that ruin, but I persevered and loved every minute of struggle!

To be honest I've loved just about every major dungeon I've come across...

I forgot the name of the dungeon, but...

*spoilers*

The one in the 'Lost Expedition' quest, in the Dwemer city under Malkarth, is my favourite so far.

(off topic - how do you do a spoiler tag?)

Embershard Mine ^ ^

Nchuand-Zel

And I believe it's [ spoiler] (without the space) to begin spoiler, [/spoiler] to end it.

Thanks