A song set in stone
It sat in glory all alone
Staunch in its fight against the dark
Until foul betrayal extinguished it's great spark.
Gondolin
Gondolin, the great Hidden City of Turgon was concealed from friend and foe alike during the First Age by the Encircling Mountains, and guarded from trespassers by the Eagles of Thorondor.
Tolkien Gateway: Gondolin