The Gates of Hell is a fiery crater that has been burning in the Karakum Desert of Turkmenistan since 1971.
The world’s first astronomical site, Nabta Playa, was built in Africa. It is 2,000 years older than Stonehenge. Located in the Sahara desert, the 7,000-year-old stone circle was used to track the summer solstice and the arrival of the annual monsoon season.
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