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.

The Moonlight Rainbow Fountain is the world's longest bridge fountain that set a Guinness World Record with nearly 10,000 LED nozzles that run along both sides that is 1,140m long, shooting out 190 tons of water per minute. Installed in September 2009 on the Banpo Bridge, former mayor of Seoul Oh Se-hoon declared that the bridge will further beautify the city and showcase Seoul's eco-friendliness, as the water is pumped directly from the river itself and continuously recycled. The bridge has 38 water pumps and 380 nozzles on either side, which draw 190 tons of water per minute from the river 20 meters below the deck, and shoots as far as 43 meters horizontally.

“Smudge” an orphaned echidna puggle is held by Veterinary nurse Sarah Male ahead of its feeding on November 07, 2022 in Sydney, Australia. Echidnas, sometimes known as spiny anteaters, are native to Australia. A baby echidna was found orphaned by the side of the road and is being cared for at Sydney's Taronga Zoo hospital. The care is intensive with several feedings per day, and the echidna is housed in temperature-controlled environment to aid its recovery and growth. (Photo by Jenny Evans/Getty Images)

An aerial view of a man standing on Lake Tuz, Turkiye's second largest lake, during sunset in Ankara, Turkiye on April 22, 2024. The lake, which is on the UNESCO World Heritage Tentative List with its unique natural structure, welcomes many local and foreign tourists every year as it provides 70 per cent of the country's salt needs. (Photo by Hakan Nural/Anadolu via Getty Images)

Visitors look at photographs in the exhibition “Lisette Model Street Life e Horst P. Horst Syle and Glamour” at the art gallery “Camera – Centro Italiano per la fotografia” in Turin, Italy, 27 April 2021. Culture venues reopened to the public as several Italian region are back to COVID-19 yellow zone in the country's tier system. (Photo by Alessandro di Marco/EPA/EFE)

Children with painted faces in the art of the bahurupi tradition in Bardhaman, India on April 24, 2021. Impersonators family where their generations are engaged in making face painting and can easily metamorphose into different characters during a performance, as per different Traditional & Tribal myth which is the main earning source for their family. (Photo by Avishek Das/SOPA Images/Rex Features/Shutterstock)

A Hindu devotee prepares for Annakut or Goverdhan puja at Naba Brindaban temple in Kolkata on November 14, 2023. Annakut or Govardhan Puja is a Hindu festival in which devotees prepare and offer a large variety of vegetarian food to Lord Krishna as a sign of gratitude for saving them from floods as per Hindu Mythology. (Photo by Avishek Das/SOPA Images/Rex Features/Shutterstock)

A worker carries a bag of salt after collecting it from a pond at the Maras mines in Cuzco December 3, 2014. Salt has been obtained in Maras since pre-Incan times by evaporating highly salty local subterranean stream water. The water is intricately channelled through constructions, flowing gradually down onto several hundred ancient terraced ponds. From each pond, a local member of the mine cooperative can produce 150 to 200 kilos per month which can be sold in the markets at $0.34 per kilogram, according to miners. (Photo by Enrique Castro-Mendivil/Reuters)