![Ruins of the ancient city of Petra in Jordan. Petra is an important archaeological site in Jordan, and the capital of the ancient Nabatean kingdom, wh Stock Photo - Alamy Ruins of the ancient city of Petra in Jordan. Petra is an important archaeological site in Jordan, and the capital of the ancient Nabatean kingdom, wh Stock Photo - Alamy](https://c8.alamy.com/comp/2A8D61E/ruins-of-the-ancient-city-of-petra-in-jordan-petra-is-an-important-archaeological-site-in-jordan-and-the-capital-of-the-ancient-nabatean-kingdom-wh-2A8D61E.jpg)
Ruins of the ancient city of Petra in Jordan. Petra is an important archaeological site in Jordan, and the capital of the ancient Nabatean kingdom, wh Stock Photo - Alamy
![Geological research in the ancient city Petra, Jordan | Institute of Geology of the Czech Academy of Sciences Geological research in the ancient city Petra, Jordan | Institute of Geology of the Czech Academy of Sciences](https://www.gli.cas.cz/en/system/files/users/public/zajic_5/gallery_assist/gallery_1074/002.jpg)
Geological research in the ancient city Petra, Jordan | Institute of Geology of the Czech Academy of Sciences
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