Jacob's Well is a perennial karstic spring in the Texas Hill Country flowing from the bed of Cypress Creek, located northwest of Wimberley, Texas. The twelve foot (four meter) diameter mouth of the spring serves as a popular swimming spot for the local land owners whose properties adjoin Cypress Creek. From the opening in the creek bed, Jacob's Well cave descends vertically for about thirty feet (ten meters), then continues downward at an angle through a series of silted chambers separated by narrow restrictions, finally reaching a depth of one hundred and twenty feet (forty meters). Until the modern era, the Trinity Aquifer-fed natural artesian spring gushed water from the mouth of the cave, with a measured flow in 1924 of one hundred and seventy gallons per second (six hundred and forty liters per second) discharging six feet (two meters) into the air. The spring is the greatest source of water recharging the Edwards Aquifer.

A Felix Airways plane is seen after it was destroyed by an airstrike at the international airport of Yemen's capital Sanaa, April 29, 2015. Jets from a Saudi-led alliance destroyed the runway of Yemen's Sanaa airport on Tuesday to prevent an Iranian plane from landing there, Saudi Arabia said, as fighting across the country killed at least 30 people. Airport officials said the strikes set a civilian aircraft operated by Yemeni Felix Airways ablaze. (Photo by Khaled Abdullah/Reuters)

Farhad Moshiri, an Iranian artist working a lot with carpet media using it as a mean to joke about consumerism culture, was one of the participants of the group show Love Me Love Me Not of Yarat! pavilion curate by Dina Nasser-Khadivi (read on her curating Lalla Essaydi's Harem here) at Venice 2013 Art Biennial. The installation consists of more than 500 carpets depicting celebrities-covered magazines from all over the world.

The photograph you see above isn’t the result of Photoshop or infrared photography. Captured by Spanish photographer Palíndromo Mészáros, it shows what the landscape of Ajka, Hungary looked like half a year after the Ajka alumina plant accident — an industrial disaster in which 35 million cubic feet of toxic waste flooded the land to a height of around 6.5 feet. Mészáros lined up the thick red line caused by the sludge with the horizon line to obtain this surreal image.

A sauna building sits above the clouds at 9,280 feet (2,752 meters) at the Rifugio Lagazuoi in the Dolomite Mountains near Cortina d' Ampezzo in northern Italy July 17, 2015. The Dolomites are home to the Dolomiti Bellunesi National Park and were declared a UNESCO World Heritage Site in August, 2009. (Photo by Bob Strong/Reuters)

Britain's Princess Elizabeth clasps her hands in sympathy as Sergeant Jean Bayliss faints at her feet during an inspection of the guard of honour of the Women's Royal Army Corps at Shrewsbury Castle, Shropshire, on July 6, 1949. (Photo by AP Photo)

A surfer braves a large wave at Queenscliff in Sydney, Monday, June 6, 2016. Storms have lashed Australia's easter coast for several days whipping up waves as high as 12 meters (40 feet), which caused serious beach erosion and forced hundreds of coastal residents to evacuate. (Photo by Rick Rycroft/AP Photo)

Snow covers roofs, streets and the Charles River following a winter blizzard in Boston, Massachusetts January 28, 2015. A powerful blizzard struck Boston and surrounding New England on Tuesday, leaving some 4.5 million people grappling with as much as three feet of snow and coastal flooding. (Photo by Brian Snyder/Reuters)