Researchers made the discovery at an altitude of more than 11,200 feet above sea level, high in the Andes mountains.
Beatriz Flamini voluntarily spent nearly two years in a dark cave with little to no communication with the outside world.
Stefan Wittwer lives in Earth House Estate Lättenstrasse. He shares why he loves it, in this exclusive essay.
Rahul Sahu, 10, became stuck in a 60-feet well in India's Chhattisgarh state five days ago.
We added a $200,000 car elevator—you drive into it and it takes you down into the property.
I'm now thinking of putting a second underground bunker in my backyard.
Valentyna Dylova is hiding underground with hundreds of other Ukrainians, hoping for the best in a country being torn apart by Russian aggression.
You travel 26 feet underground in an elevator and walk out into this huge space with a house, a "yard", a swimming pool barbeque and a guest house.
I still live in a tiny house and my yearly gross is about $380,000 when all four properties are in operation. This year, I have been working on a house shaped like a ship.
There is only about 4ft of earth above us, but the whole structure is built with two feet of reinforced concrete. We have a 3,000lb blast door at the front, a 2,000lb blast door at the back and an escape hatch that leads to a full stairwell that you can go up and leave through.
As the hole deepened, I began to imagine how I could take advantage of the space, and in 2017 I decided that I wanted my own cave. I imagined creating huge rooms and arched ceilings.
Andrés Cantó has plans to expand his cave and says it will eventually have WiFi, heating and lighting.
Transport for London says it can only carry around 10 percent of the normal number of passengers on the Tube and bus networks because passengers must keep at least 2 meters apart.
British photographer Sam Rowley took an award-winning photo of two subway mice fighting over a scrap of food.
"You've gone outside of your curriculum to introduce a racist exercise. Who authorized that?," Loudoun NAACP Chapter President Michelle Thomas said.
Mexican and U.S. law enforcement agencies discovered a highly sophisticated underground tunnel—featuring a rail system and solar-powered lighting—running underneath the border between Mexico and California.
Former pageant queen has decried manspreading as an act of "gender aggression" and taken matters into her own hands.
Sadiq Khan estimated that 40 percent of London's 10- and 11-year-olds were overweight or obese.
It will tax the city's wealthiest 1 percent.
Engineering and psychology research can help improve evacuation procedures in subway attacks, like the recent St Petersburg bombing.
Google's DeepMind creates AI that uses basic reasoning to find the quickest route on the Underground.
A British photographer's penchant for turning train photos into Renaissance-style artwork is among the things we loved in Culture this week.
As ISIS is Driven Back in Iraq, Will it Emerge as a Long-Term Underground Network?
Though the show is set in 1857, its creators tapped John Legend to curate the music, including songs by Kanye West and the Weeknd.