Guy Edwardes / Feral Pigeon (Columba livia) drinking from Fonte Gaia (Fountain of Joy). Piazza del Campo, Sienna, Italy, September.

Wild Wonders of Europe / Geslin / Monk parakeets (Myiopsitta monachus) at fountain in the Vatican garden, Rome, Italy

Yva Momatiuk & John Eastcott / Great Fountain Geyser erupting, Yellowstone National Park, Wyoming

Tim Fitzharris / American Bison (Bison bison) herd grazing near Fountain Paint Pots, Yellowstone National Park, Wyoming

Tui De Roy / Volcanic eruption, radial flank fissure, February 1979, lava fountaining from splatter cone at dusk, Cerro Azul, Isabella Island, Galapagos Islands, Ecuador

Tui De Roy / Volcanic eruption, spatter cone formation and lava fountain from radial fissure, February 1979, Cerro Azul east flank, Isabella Island, Galapagos Islands, Ecuador

Tui De Roy / Volcanic eruption, spatter cone formation and lava fountain from radial fissure, February 1979, Cerro Azul east flank, Isabella Island, Galapagos Islands, Ecuador

Tui De Roy / Volcanic eruption, spatter cone formation and lava fountain from radial fissure, February 1979, Cerro Azul east flank, Isabella Island, Galapagos Islands, Ecuador

Jabruson / Kimanura eruption, Virunga NP, Democratic Republic of Congo.

Juan Manuel Borrero / Water fountain. Sao Miguel Island, Azores, Portugal. 2019.

Jeff Vanuga / Bison (Bison bison), two crossing the Firehole River, Fountain Flat, Lower geyser basin, Yellowstone National Park, Wyoming. September.

Jeff Vanuga / Bison (Bison bison) crossing road in heavy fog, with car headlights in background, Fountain Flats, Yellowstone National Park, Wyoming. September 2017.

Shane P. White / Water fountain and skyscrapers, Kuala Lumpur, Malaysia

Oliver Hellowell / Bubbling water in fountain at Tretower Court, near Crickhowell, Powys, Wales, UK. July

Gavin Hellier / View of the Summer Palace, near St, Petersburg, Russia, May 2016. Hellier

Doug Perrine / Lava from Kilauea Volcano erupts from fissures in Kapoho, shooting glowing lava bombs hundreds of meters into the sky and releasing clouds of poisonous gases. Puna District, near Pahoa, Hawaii. June 2...

Doug Perrine / Lava from Kilauea Volcano erupts from a fissure in Kapoho, Puna District, near Pahoa, Hawaii. June 2018.

Ingo Arndt / Red fountain grass (Pennisetum setaceum), Kenya

Nick Upton / Dense stand of Cat tail / African Fountain grass (Pennisetum setaceum) an Ethiopian species invasive in the Canaries growing in the Tamadaba Natural Park, Gran Canaria UNESCO Biosphere Reserve, Gran C...

Martin Gabriel / Yerevan Cascades and garden with flower beds, Yereven City, Armenia, October 2012.

Kirkendall-Spring / Great Fountain Geyser on Firehole Lake Drive, Yellowstone National Park, Wyoming, USA. September 2015.

Jeff Vanuga / American buffalo (Bison bison) grazing on Fountain Flat with geysers erupting behind. Yellowstone National Park, Wyoming, USA, June.

Jeff Vanuga / Great Fountain Geyser eruption. Upper Geyser Basin of Yellowstone National Park, Wyoming, USA, June 2015.

Jeff Vanuga / White Dome Geyser erupting in winter in Fountain Flats. Lower Geyser Basin, Yellowstone National Park, Wyoming, USA, January 2015.

Hanne & Jens Eriksen / Fountain in park, Jebel Hafeet, UAE.

Albert Lleal / Coral Fountain (Russelia equisetiformis) anther, seen under SEM, 1436x magnification

Albert Lleal / Coral Fountain (Russelia equisetiformis) anther, seen under SEM, 4000x magnification

Jeff Vanuga / Clypsedra Geyser eruption at Fountain Flats, Lower Geyser Basin, Yellowstone National Park, Wyoming, USA, June 2013.

Jeff Vanuga / Dead lodgelpole pines stand in constrast against a winter sun and thermals from Lower Geyser Basin as seen from Fountain Flats. Yellowstone National Park, Wyoming, USA, January 2013.

Enrique Lopez-Tapia / Young Himba woman drinking water from a fountain. Kaokoland, Namibia, September 2013.

Hiroya Minakuchi / Japanese Maple (Acer palmatum) foliage in a bamboo fountain, Enkoji Temple, Japan

Kirkendall-Spring / Clouds reflected in Great Fountain Geyser at dusk, Yellowstone National Park, Wyoming, USA. July 2013.

David Pattyn / Hanuman / Northern Plains Grey Langur (Semnopithecus entellus) group sitting in a fountain in Ranthambore fort, Ranthambore National Park, Rajasthan, India, June

Guy Edwardes / Feral Pigeon (Columba livia) drinking from Fonte Gaia (Fountain of Joy) fountain. Piazza del Campo, Sienna, Italy, September.

Guy Edwardes / Feral Pigeon (Columba livia) drinking from Fonte Gaia (Fountain of Joy). Piazza del Campo, Sienna, Italy, September.

Gavin Hellier / Santa Lucia park and the ornate Terraza Neptuno fountain, Cerro Santa Lucia, Santiago, Chile, 2008

Gavin Hellier / Whale tail fountain sculptures, Hamilton, capital of Bermuda, 2009

Gavin Hellier / Sebilj, a Moorish-style fountain modelled on a stone fountain in Istanbul dating from 1891 in front of Bascarsija Mosque, Bascarsija district, Old Town, Sarajevo, Bosnia and Herzegovina, Balkans 2007

Tim Fitzharris / Hot spring near Fountain Lake, Yellowstone National Park, Wyoming

Wild Wonders of Europe / Préau / Fountain in urban lake, Grande-Synthe, Dunkirk, France, September 2010

Nick Turner / Water fountain and trees in city park in summer, Cheltenham, Gloucestershire, UK, June 2011.

Paul Hobson / Feral Pigeon / Rock Dove (Columba livia) huddled before fountain. Sheffield, UK.

Ernie Janes / Formal gardens with fountain at Ascott house, Buckinghamshire, UK, April

Ernie Janes / Sunken Garden at Houghton Hall, Norfolk, UK

Ernie Janes / Sunken Garden at Houghton Hall, Norfolk, UK

Toby Roxburgh / Cacti (Cactaceae) growing in the Jardin Majorelle (Majorelle Garden), Marrakech, Morocco, March 2010.

Toby Roxburgh / Panorama of Cathedral and City Council buildings, Bristol, England, April 2009.

Toby Roxburgh / Fountain in the courtyard garden of the Bahia Place, Marrakech, Morocco, March 2010.

Toby Roxburgh / Courtyard fountain, Bahia Place, Marrakech, Morocco, March 2010.

Angelo Gandolfi / The Fountain of Neptune, Navona Square, Rome, Italy, December 2009

Laurent Geslin / Herring gull (Larus argentatus) on a fountain.

Juan Carlos Munoz / Ceramic fountain in village of Vejer de la Frontera, Nr Cadiz, Costa de la Luz, Andalucia, Spain, August 2008

Juan Carlos Munoz / Ceramic frog fountain in village of Vejer de la Frontera, Nr Cadiz, Costa de la Luz, Andalucia, Spain, August 2008

Chris Gomersall / Common waxbill (Estrilda astrild) on garden water fountain, Walvis Bay, Namibia, November

Chris Gomersall / Common waxbills (Estrilda astrild) drinking at garden water fountain, Walvis Bay, Namibia, November

Juan Manuel Borrero / Courtyard with mosaic floor and fountain in El Badi Palace, Marrakech, Morocco December 2007

Juan Manuel Borrero / Cacti growing in the Majorelle gardens with a purple fountain in the background. Marrakech, Morocco December 2007

Juan Manuel Borrero / Fountain in the intricate courtyard of Bahía Palace in Marrakech, Morocco December 2007

Pete Oxford / Water fountain, Tiananmen Square, Beijing, China 2006

Barrie Britton / Feral cat {Felis catus} Siamese cat, near Trevi fountain, Rome, Italy

Jabruson / Lava explodes from active volcano, Kimanura eruption, Virunga NP, Democratic Republic of Congo (formerly Zaire)

Jabruson / Lava fountain and subsequent flow from active Kimanura volcano, Virunga NP, Democratic Republic of Congo, formerly Zaire

Barry Bland / Water Fountain Show at the Bellagio Casino, Las Vegas, Nevada, USA.

Tim Fitzharris / Hot spring near Fountain Lake, Yellowstone National Park, Wyoming

Tui De Roy / Galapagos native Gil De Roy admires nocturnal display of fountain lava, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / New spatter cones in old vegetated crater with lava fountain from active vent along radial fissure on flank of shield volcano, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Splatter cone formation and lava fountaining from eruptive vent along radial fissure on flank of shield volcano, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Splatter cone formation and lava fountain from eruptive vent along radial fissure on flank of shield volcano, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Spatter cone formation and lava fountain from eruptive vent along radial fissure on flank of shield volcano, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Bomb impacts around eruptive vent from lava fountain along radial fissure on flank of shield volcano, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Volcanic eruption, lava flow and fountain from circumferential fissure, Volcan Chico, Sierra Negra, Isabella Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Mockingbird (Nesomimus parvulus) surveying its territory from atop a Giant Candelabra Cactus (Jasminocereus thouarsii) near fountain vent, Cape Hammond, Fernandina Island, Galapagos Islands,...

Tui De Roy / Volcanic eruption, new splatter cones on vegetated crater with lava fountain from radial fissure, February 1995, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Volcanic eruption, spatter cone formation and lava fountaining from eruptive vent along radial fissure on flank of shield volcano, February 1995, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / New spatter cones in old vegetated crater with lava fountain from active vent along fissure on flank of volcano, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Spatter cone and lava fountain from vent along radial fissure on flank of volcano, February 1995, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Volcanic eruption, spatter cone formation and lava fountain from eruptive vent along radial fissure on flack of shield volcano, February 1995, Fernandina Island, Galapagos Islands, Ecuador

Jose B. Ruiz / Horse statue / fountain, Plaza del Potro, Cordoba, Andalucia, Spain

Dave Watts / Feral pigeons / Rock doves {Columba livia} drinking from fountain, Siena, Italy

Jose B. Ruiz / Fountain in courtyard of Roman museum, Cordoba, Andalucia, Spai

Gavin Hellier / Trevi Fountain floodlit at night - Baroque Fontana di Trevi, Rome, Italy

Gavin Hellier / Trevi Fountain - Baroque Fontana di Trevi, Rome, Italy

Gavin Hellier / People sitting by fountain in Placa Real, Barcelona, Catalunya, Spain

Tim Fitzharris / American Bison (Bison bison) mother and calf grazing near geothermal hot springs, Fountain Paint Pot, Yellowstone National Park, Wyoming

David Fleetham / Ghost shrimp / fountain shrimp / flameback coral shrimp (Stenopus pyrsonotus), Hawaii.

David Fleetham / Ghost shrimp / Fountain shrimp / Flameback coral shrimp (Stenopus pyrsonotus), Hawaii.

Angelo Giampiccolo / Bernini's Fontana dei 4 fiumi (fountain of the four rivers) in Rome's Piazza Navona. The statute seen here represents the Rio della Plata River and the riches of the Americas. ^^^The fountain represen...

Angelo Giampiccolo / Bernini's Fontana dei 4 fiumi (fountain of the four rivers) in Rome's Piazza Navona. The statue seen here represents the Rio della Plata River and the riches of the Americas. In the background is the...

Angelo Giampiccolo / Bernini's Fontana dei 4 fiumi (fountain of the four rivers) in Rome's Piazza Navona. The statute seen here represents the Rio della Plata River and the riches of the Americas. ^^^The fountain represen...

Angelo Giampiccolo / The Fontana dei 4 fiumi (fountain of the four Bernini's Fontana dei 4 fiumi (fountain of the four rivers) in Rome's Piazza Navona. The statue seen here represents the Rio della Plata River and the ric...

Angelo Giampiccolo / Bernini's Fontana dei 4 fiumi (fountain of the four rivers) in Rome's Piazza Navona. In this picture is a statue representing the Ganges River and the continent of Asia. In the background is the churc...

Angelo Giampiccolo / Fountain in Piazza Pretoria, Palermo, Sicily, illuminated at night.

Bryan and Cherry Alexander / Tourists watching the Fountain Paint Pot Geyser erupt. Yellowstone National Park, USA.

Jose B. Ruiz / A Fountain in Ponteceso, Costa da Morte, Galicia, Spain

Bernard Castelein / Great Fountain Geyser after sunset, Yellowstone National Park, Wyoming, USA

Hanne Jens Eriksen / Blowhole spurting water with man watching, Al Maghsayl, Oman