Environmental Graffiti

10 Incredible Underground Lakes and Rivers [pics]

Far below the Earth’s surface, where the sun rarely penetrates, is a world of twinkling glow worms, precious gems and limestone caves and mountains, a land inhabited by nature alone. Within this world are visions to rival many landscapes decorating our horizon; lakes lie still, great networks of caves know no borders and rivers and rivulets carve an ever-evolving terrain.

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