A colossal continental tree metropolis built into a massive living world-tree that spans an entire continent, towering trunk platforms forming layered city districts with organic bark architecture and cascading hanging gardens, massive branches supporting entire neighborhood districts connected by living vine bridges, bioluminescent leaves creating ethereal glow throughout the canopy, flying organic vessels and creature mounts navigating between luminous foliage, deep emerald and golden amber palette with warm sunlight filtering through infinite leaves, epic wide shot with tiny silhouetted figures on observation platforms emphasizes impossible organic architectural scale, photorealistic, cinematic depth of field