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13 natural rock formations that look man-made

By: Angela Nelson on July 19, 2016, 12:40 p.m.
Moeraki Boulders, New Zealand

Photo: Chris Gin/flickr

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Moeraki Boulders

The Moeraki Boulders are a series of more than 50 spherical stones that dot a stretch of Koekohe Beach on the New Zealand coast. Each one weighs several tons and some stand more than six feet high. According to, Maori legend says the boulders are "gourds washed ashore from the great voyaging canoe Araiteuru when it was wrecked upon landfall in New Zealand hundreds of years ago."

Legend aside, the rocks originally formed around 60 million years ago from sediments on the sea floor. Over time, the concretions have been exposed through shoreline erosion from waves and coastal cliffs that back the beach.

Feel free to walk on the boulders and enjoy them, but know that the Moeraki Boulders have legal protection and it's illegal to move, vandalize or damage them.