Looking for WADs with high levels of detail.

Have you ever thought, 'huh. this is cool but kinda bland.' Well that's how I feel sometimes. Does anyone know of any WADs with high texture detail? Something similar to Ancient Aliens or along those lines?

Stronghold and ZDCMP 2 come to mind. Prime directive is also a contender (if you can figure out how to get a particular computer panel work. I know I can't)

Some visually impressive wads off the top of my head:

Valiant

Going Down

Sunlust

Speed of Doom

Resurgence

Hellbound

Whispers of Satan

Plutonia 2

Breach

Brigandine

Stardate 20x7

Swim with the Wales

Sunder

Since you mentioned Ancient Aliens, I would especially recommend Valiant (also by Skillsaw) and Stardate 20x7 (go purple!)

Dark Universe

Dark Tide

Not as purple and pink as AA, but very detailed both in design and aesthetics.

Lutz's Hellscape has some highly-detailed, high-quality hell maps. For me, they verge on being too detailed for my taste, but if you're looking for detail the set could hit the spot. Deus Vult II has some real jaw-dropping sights, especially towards the end of the set. +1 on on Breach and Brigandine as well--no one outdoes Viggles in the high-detail stunning visuals department.

FWIW, if you want low-detail but very non-bland visuals, I'd recommend Jim Flynn's Enigma Episode. The maps look crude and ugly as hell at first, but as you get into it you start to realize there's a really unique and purposeful visual style.

...as well as Dark Universe which has already been mentioned. Thanks wintertowns !

https://www.doomworld.com/idgames/levels/doom2/Ports/s-u/satchap this one is awesome.

I'm surprised nobody has recommended skulldash.

Bloody Steel , a russian wad

Chris Lutz's oeurve is the best detail-obsession mapping I've seen, my favorite being Caverns of Darkness.

Breach and Brigadine by Viggles are basically the best stock texture usage you'll ever lay your eyes on.