You really don’t need thousands of Lego bricks to create your own Lego kingdom.
Microscale Mountain Hall by Avocado Butters.

Sweeping turrets, houses clinging to the side of a rocky precipice, steps leading up to the arched entrance to the castle fortress – all packed onto 14×20 studs.

This build was uploaded to Flickr 7 (!) years ago, with no further Lego related uploads from the builder Avocado Butters since, which is a pity as s/he has a really good eye for detail, making really interesting use of Technic pins & grill pieces to create something majestic.