Evergreen forest, in its mature phase. [fact]
Evergreen forest, in its mature phase, produces darkly vaulted aisles, through which sound reverberates with unusual clarity—a circumstance which, according to Oswald Spengler, drove the northern Europeans to try to duplicate the reverberation in the construction of Gothic cathedrals.
Schafer, Murray R, The Soundscape- Our Sonic E…, loc. 83