A massive floating fortress made of lightweight futuristic metal

A massive floating fortress made of lightweight futuristic metal, suspended in the sky by a spatial fixed-point portal acting as a gravity anchor, gigantic gyroscope mechanism rotating on a central axis for levitation, huge power supply cables extending from the ground to the floating structure, high-tech yet ancient monumental architecture, dense clouds below, dramatic lighting, epic wide angle shot, ultra detailed, 4k rendering, powerful atmosphere, mysterious advanced civilization,no broken physics, no floppy cables, no melted metal, no cartoonish look, no low detail machinery, no blurry structures

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