“I arrived at another hall, the roof of which was of a pale blue, spangled with constellations of silver stars, and supported by porphyry pillars of a paler red than ordinary. The whole of the floor of this hall, except a narrow path behind the pillars, paved with black, was hollowed into a huge basin, many feet deep, and filled with the purest, most liquid and radiant water. The bottom was paved with all kinds of refulgent stones, of every shape and hue. Led by an irresistible desire, I undressed, and plunged into the water. I rose to the surface, shook the water from my hair, and swam as in a rainbow, amid the coruscations of the gems below seen through the agitation caused by my motion. Then, with open eyes, I dived, and swam beneath the surface. And here was a new wonder. For the basin, thus beheld, appeared to extend on all sides like a sea, with here and there groups as of ocean rocks, hollowed by ceaseless billows into wondrous caves and grotesque pinnacles. Around the caves grew sea-weeds of all hues, and the corals glowed between. I thought I had been enchanted; and that when I rose to the surface, I should find myself miles from land, swimming alone upon a heaving sea; but when my eyes emerged from the waters, I saw above me the blue spangled vault, and the red pillars around.”

— Phantastes, by George MacDonald

“Entering by a wide gateway into an inner court, surrounded on all sides by great marble pillars supporting galleries above, I saw a large fountain of porphyry in the middle, throwing up a lofty column of water, which fell, with a noise as of the fusion of all sweet sounds, into a basin beneath; overflowing which, it ran into a single channel towards the interior of the building. It led to a great open door, beneath the ascending steps of which it ran through a low arch and disappeared. Although the moon was by this time so low in the west, that not a ray of her light fell into the court, over the height of the surrounding buildings; yet was the court lighted by a second reflex from the sun of other lands. For the top of the column of water, just as it spread to fall, caught the moonbeams, and like a great pale lamp, hung high in the night air, threw a dim memory of light (as it were) over the court below. This court was paved in diamonds of white and red marble.”

— Phantastes, by George MacDonald

“Beyond them was a wide level space, as though the floor of a great hall had been cut in the side of the hill…, and along each wall stood an aisle of trees.… At the far end the rock-wall was sheer, but at the bottom it had been hollowed back into a shallow bay with an arched roof: the only roof of the wall, save the branches of the trees…. A little stream … fell tinkling down the sheer face of the wall, pouring in silver drops, like a fine curtain in front of the arched bay.

“Treebeard lifted two great vessels and stood them on the table. They seemed to be filled with water, but he held his hands over them, and immediately they began to glow, one with a golden and the other with a rich green light;… Looking back, the hobbit saw that the trees in the court had also begun to glow … until every leaf was edged with light: some green, some gold, some red as copper.”
— The Lord of the Rings, Book III, Chapter 4: Treebeard

“Silence was pleased: now glowed the firmament
With living sapphires: Hesperus that led
The starry host, rode brightest, till the Moon
Rising in clouded Majesty, at length
Apparent queen unveiled her peerless light,
And o're the dark her Silver Mantle threw.”
— Paradise Lost

I created this picture in Vue to use for a mural on my bedroom wall.