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Friday, 16 May 2014

10 OF THE WORLD'S MOST WONDROUS NATURAL ARCHES


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10 of the world's most wondrous natural arches
By Bryan Nelson,
Mother Nature Network, 15 May 2014.

Spectacular spans

Few of Earth's formations seem to suggest an intelligent creator quite like natural arches and bridges do. But it is precisely the fact that they were moulded by the delicate hands of a heedless, indifferent sculptor - Mother Nature - that make them so awe-inspiring. Perhaps the beauty of natural arches comes from how improbable they seem.

Carved from nothing more than the weathering hand of time and Earth's own forces, here are some of the world's most wondrous natural arches.


1. Landscape Arch, United States

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Photo: daveynin/Flickr

Arches National Park in Utah hosts one of the largest concentrations of natural arches in the world, and the longest arch in the park is Landscape Arch. Spanning over 290 feet, the arch hangs precariously like an aging picture frame.


2. Durdle Door, United Kingdom

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Photo: Santia/Shutterstock

This impressive limestone sea arch on the Jurassic Coast near Lulworth in Dorset, England, appears like a gateway to another dimension. The name Durdle is derived from the Old English “thirl,” meaning bore or drill.


3. Moon Hill, China

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Photo: Craig Hansen/Shutterstock

This stunning natural arch just outside Yangshuo in southern China's Guangxi region gives the impression of a moon rising from the landscape. The hole is all that remains of a limestone cave. The arch is an impressive 165 feet in height.


4. Rainbow Bridge, United States

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Photo: Jason Hickey/Wikimedia Commons

Rainbow Bridge in Utah is often described as one of the world's largest known natural bridges. It's difficult to imagine just how impressive this structure is without standing beneath it. More than 290 feet tall and nearly 275 feet across, it straddles a feeder canyon to the mighty Colorado River, improbably unbroken through time.


5. Pont d’Arc, France

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Photo: Klaus/Flickr

Carved out by the Ardeche River, Pont d'Arc is a popular kayaking spot, and you can see why. This natural bridge is almost 200 feet wide and 175 feet high.


6. The Azure Window, Malta

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Photo: Rob WIlson/Shutterstock

This limestone sea arch on the Maltese island of Gozo is a popular spot for scuba divers, but it is also potentially perilous. Like all natural arches, the Azure Window has a lifespan, and erosion rates suggest this arch could collapse completely within just a few years. You wouldn't want to be swimming beneath it when that happens.


7. Immortal Bridge, China

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This precarious rock bridge found on Mount Tai, a tilted fault-block mountain, is counterintuitively called the Immortal Bridge, though you probably wouldn't want to test your own mortality by crossing it.


8. Green Bridge of Wales, United Kingdom

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Photo: Tatagatta/Shutterstock

This impressive natural sea arch is found in the Pembrokeshire Coast National Park in Wales. Today it is one of the more famous landmarks in Wales, but like all arches it will one day collapse into the sea.

Suggested Story: 9 amazing water caves

9. Arco Naturale, Italy

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Found on the east coast of the island of Capri, this natural arch offers a spectacular window to the sea. Dating from the Palaeolithic age, it is the remains of a collapsed grotto.


10. Delicate Arch, United States

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Photo: Doug Meek/Shutterstock

The most famous arch in Arches National Park, Utah, Delicate Arch hangs tenuously over the sweeping landscape. Formed of sandstone gradually worn away by weathering and erosion, it appears like a keyhole to an ancient era.


Top image: Arches National Park. Photo:tusharkoley/Shutterstock.

[Source: Mother Nature Network. Edited. Some links added.]


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