I've always seen people complain about Oblivion having dungeons that all look the same, and I agree, so I've been wondering.
Are there any mods that are essentially Unique Landscapes, but for dungeons. In other words, a mod that takes any number of the vanilla dungeons (Not add any new ones) and give them a visual overhaul?

Hmmm, I'm interested too. I could have sworn I actually saw a mod like this a while back, but the name escapes me.

if there is i'll get it.tired of going into essentially the same dungeon over and over.

There was a community project a long time ago that tried to do this, but didn't get very far. It was called the Community Dungeon Expansion Project. Only 2 mods were released, one for http://www.tesnexus.com/downloads/file.php?id=13939 and http://www.tesnexus.com/downloads/file.php?id=14036 connecting a couple Ayleid Ruins. I would love it if someone did an overhaul of the vanilla dungeons, hopefully someone will pick that up someday.