The Mesa
A towering mesa stands before you, roughly a kilometer high and three hundred fifty feet across, with a path winding up to the base. A hole in the side reveals stairs that go straight up to the top of the mesa. A large cargo elevator is tucked away in a shadowy nook to bring up large parties or large creatures, or for those who don't feel like walking. At the top, in a series of big, wide corridors and spacious, carved rooms with window openings on all sides and on multiple levels, a breathtaking view of the surrounding scrub brush, small trees, and a small reservoir lake with a river snaking its way across the land, passing close to the base of the mighty tower. The rooms contain all the best accoutrements that a dragon could want.