The mummified body of a young man has been found on Mexico's highest mountain, the Pico de Orizaba.
The man was thought to be around 25 years when he died, and could have been on the mountain for 20 years.
According to the BBC, he had been wearing normal clothing and was not dressed for mountaineering, indicating he may been a passenger on plane that crashed into the mountain in the 1990s.
It's the third body to be found on the mountain in as many months.
Two other bodies were discovered at a different site on the mountain, and were thought to climbers lost in a 1959 avalanche.
It's thought the bodies are emerging as glaciers and the ice pack on the mountain retreat.
According to the Mirror, a spokesman for Chalchicomula de Sesma, the nearest town, confirmed the body was brought down from the mountain on Thursday.
The world's most extreme places
Third mummified body found on Mexico's highest mountain
Deep within the Arctic Plateau, a site known as Ridge A, more than 4,000m above sea level, has the coldest average temperatures ever recorded on earth, at -70C. Will Saunders, who led a study team of scientists to find the coldest spot, described it thus: "It's so calm that there's almost no wind or weather there at all."
This is a bit of a contentious one, as several other spots in the Middle East also claim the title, including Jericho, and Sidon in Libya. But archaeologists claim there is evidence of human habitation dating back at least 11,000 years in Damascus. Today, it's a metropolitan area that is home to 2.5 million people.
This spectacular mountain, in Auyuittuq National Park on Baffin Island, Nunavut, has a sheer 4,100ft drop, with an average of 105 degrees. Despite its remote access, it's popular with rock climbers seeking a thrill... but we reckon you'd need to be mad to try it.
Surrounded by canyons and occupying a huge crater bowl 3,600m above sea level on the Altiplano highlands, La Paz leaves you breathless in more ways than one. The city lays claim to the title of highest capital city above sea level (and it boasts the highest airport, too). Second-highest is Quito, Ecuador (2,850m), followed by Bogota in Colombia (2,580m).
Stretching 6,670km (4,160 miles), the Nile flows northwards, beginning in Burundi and stretching through several countries including Uganda, Ethiopia, Sudan, and Egypt, stretching into the Mediterranean Sea.
This small village of around 500 people in the Sakha region of Siberia holds the record for the lowest temperature ever recorded by a permanently inhabited settlement. The lowest temperature recorded here is -71.2C Average temperatures range from -45C in winter to 10C in summer, making it the place with the most significant temperature difference in the world too. It's not an easy place to visit: the nearest city is a three-day drive away...
There's a debate over the hottest place on earth, but with the mercury reaching 70.7C, Iran's Lut Desert has held the highest recorded temperature on the planet since 2005. The 480 sq km area is strewn with dried lava rock, which absorbs the heat of the sun. It's so hot that it's considered abiotic, meaning that no life can be sustained here. Not the best place for a holiday, then...
The highest waterfall in the world, also known as Kerepakupai meru (waterfall of the deepest place) drops nearly a kilometre. 3,212ft (979m) with a clear drop of 2,647ft (807m).
With a peak of 29,028ft (8850m), Everest is five and a half miles above sea level.The world's best known and tallest mountain straddles Tibet and Nepal and is believed to be at least 60 million years old. Thinking of going? The number of people who have attempted to climb Everest is around 4,000. Number of people who have succeeded: Less than 700.
Ok, so at 21,000ft, it's not as tall as Everest. But it's actually closer to the moon and stars than anywhere else on earth, due to the curvature of our planet. This also means its summit is the farthest point on the earth's surface from its centre.