Revised from neanor's original expansion on Bromjunaar  for Oldrim, incorporating Alurik's better wooden mask, I bring you the Timelost Bromjunaar. A sanctuary where the dragon priests left the things they stockpiled for when Alduin came back, now open to the one with a Dragon's Soul who has unlocked their masks. Live in a bubble beyond time. Don't mind the burnt corpse of the last intruder to make it here- you have authorization from Akatosh and Shor to access this pocket of time. As an authorized traveler, you can teleport here form anywhere, and return to where you left from- this is the warlord's privilege.
The bone fence marks the edge of this pocket realm- beyond it you will see the mundrial shape of Bromjunaar in ruin. Contents: everything a dragon priest would keep to repair  their masks in need. A decent selection of shelving, for arcane tomes, or mundrial resources. Cooking supplies, in case of a long wait. Eight bedrolls, one per priest- just in case.
Weapon racks: some locked to artifacts, and some for casual use. Notches for all the claws, even Vahlok's overly secure amethyst key, along with masks slots for the solstheim of-shoot of the Dovah Sonaak.
Display spaces, of a sort. Not precisely a trophy rack, and not a museum, but a table on which to stash the relics of your many adventures. Daedric, Aedric, or the work of the conquered Falmer; you will be able to show off some things.
A chalice, flowing with blood- the dragon cult weren't nice.
Azhidal's enchanting station, with storage to hand. Hevnoraak's alchemy station: also with storage to hand.
There's a nifty forge made out of vanilla assets that will give you access to certain recipes normally left quest-locked. Two cooking stations, both creatively placed. Eight bedrolls for eight priests. Ore veins, ingredients, alchemy station and enchanting station. No staff enchanters, the fourth era version wouldn't have been an option when they were prepping the bolthole. A writ that explains the stockpile.

There are some secrets hidden in the garden, if you listen you will hear them whispering. There are other secrets hidden by the forge - you will find out what they are when you work the forge of the priests.
I worked hard to keep this Lore friendly, or at least not unfriendly.

May have compatibility issues with anything that alters the wooden mask.