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“Glow Worm Metropolis”

An abandoned rail tunnel glows in the rain.
An abandoned rail tunnel glows in the rain. Photo: Josselin Cornou

An old train station in Helensburg, Australia, is teeming with glow worms radiating blue-white light. There are millions of glow worms in this photo, taken during a storm—hence the soft flow of a waterfall at right.