Beowulf

Grendel's lair is described as bring "down in the darkness".

. . A powerful monster, living down In the darkness

Heorot is a great feasting hall described as "the foremost of halls under heaven." It is made of timber and decorated with gold.

“The men did not dally; they strode inland in a group until they were able to discern the timbered hall, splendid and ornamented with gold[;] The building in which that powerful man held court was the foremost of halls under heaven; Its radiance shone over many lands...”