The Fisk Street turbine power station in Chicago

The invisible wheels go softly round and round—
Light is the tread of brazen-footed Power.
Spirits of air, caged in the iron tower,
Sing as they labor with a purring sound.
The abysmal fires, grated and chained and bound,
Burn white and still, in swift obedience cower;
While far and wide the myriad lamps, aflower,
Glow like star-gardens and the night confound.
This we have done for thee, almighty Lord;
Yea, even as they who built at thy command
The pillared temple, or in marble made
Thine image, or who sang thy deathless word.
We take the weapons of thy dread right hand,
And wield them in thy service unafraid.