15 Unreal Natural Wonders You Have to See to Believe

Lisette Marie

November 12, 2025

10. The Blood Falls, Antarctica – A Waterfall of Red

Blood Falls seeps from the end of the Taylor Glacier into Lake Bonney. The tent at left provides a sense of scale for just how big the phenomenon is. Scientists believe a buried saltwater reservoir is partly responsible for the discoloration, which is a f. Photo Credit: Wikimedia Commons @National Science Foundation/Peter Rejcek

A gory red waterfall pouring from the ice of Antarctica? It sounds like a horror movie, but it’s real. The Blood Falls in Antarctica get their deep crimson color from iron-rich, oxygen-deprived water that has been trapped beneath a glacier for millions of years. When the water finally surfaces, it oxidizes instantly, creating a shocking red hue against the stark white ice. Scientists believe this phenomenon offers clues to life on other planets, as it’s one of the most extreme environments on Earth.

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15 Unreal Natural Wonders You Have to See to Believe

10. The Blood Falls, Antarctica – A Waterfall of Red

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