Medieval Dark Tower in the middle of a surreal, fantastical, dark tenebrous landscape. Cosmos stars. chain lightning strikes the world. Above a swirling vortex of time, with glowing particles, fragments of stones, and faint historical landmarks from different eras appearing in the mist below. The sky is a blend of vibrant, swirling colors — hues of gold, blue, and purple — with a band of bats and with streaks of light and stars forming trails, as if bending time itself. The overall atmosphere is awe-inspiring and magical, with intricates details showcasing the terror dark tower.