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This is the crystal cave of giants found in the Naica Mine, Chihuahua, Mexico. These are Selenite crystals (gypsum) and are the largest crystals ever discovered...  They are 1000 feet down in a limestone host rock, where they are mining for lead, zinc and silver.

This is the crystal cave of giants found in the Naica Mine, Chihuahua, Mexico. These are Selenite crystals (gypsum) and are the largest crystals ever discovered... They are 1000 feet down in a limestone host rock, where they are mining for lead, zinc and silver.

Blue Magic on  Biševo (Croatia). 'Of the numerous  caves around the  remote limestone island  of Biševo, the Blue  Grotto (Modra Špilja) is the  most spectacular. On a clear morning,  the sun’s rays penetrate  through an underwater hole  in this coastal cave, bathing  the interior in a mesmerising  silvery-blue light.

Blue Magic on Biševo (Croatia). 'Of the numerous caves around the remote limestone island of Biševo, the Blue Grotto (Modra Špilja) is the most spectacular. On a clear morning, the sun’s rays penetrate through an underwater hole in this coastal cave, bathing the interior in a mesmerising silvery-blue light.

shops and lanes in the old city, Jerusalem but watch out for pickpockets  LOL I was done over in 98

shops and lanes in the old city, Jerusalem but watch out for pickpockets LOL I was done over in 98

Le Plateau de l'Ennedi et la guelta d'Archei (Massifs dans le Sahara, au nord-est du Tchad)

Le Plateau de l'Ennedi et la guelta d'Archei (Massifs dans le Sahara, au nord-est du Tchad)

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