Nick Garbutt / Painted houses along the sea front, Tobermory, Isle of Mull, Inner Hebrides, Scotland, UK, June 2010

Doug Gimesy / Tourist on Yarra River riverbank looking at Platypus (Ornithorhynchus anatinus) mural painted on wall by artist Jimmy Beattie, part of 'Communities for Platypus program'. Warburton, Victoria,...

Juan Carlos Munoz / Painted hotel facade and cart in Knightstown, Valentia Island, Iveragh Peninsula, County Kerry, Republic of Ireland. September 2015.

Juan Carlos Munoz / Colourful painted house facades in Sneem Village, Iveragh Peninsula, County Kerry, Republic of Ireland. September 2015.

Juan Carlos Munoz / Colourful painted house facades in Dingle village, Dingle Peninsula, County Kerry, Republic of Ireland. September 2015.

Juan Carlos Munoz / Blue painted pub facade in Dingle village, Dingle Peninsula, County Kerry, Republic of Ireland. September 2015.

Tim Fitzharris / Cliffs and river, Painted Wall, Gunnison River, Black Canyon of the Gunnison National Park, Colorado

Tim Fitzharris / Cliff and river, Painted Wall, Gunnison River, Black Canyon of the Gunnison National Park, Colorado

Tim Fitzharris / Cliff and river, Painted Wall, Gunnison River, Black Canyon of the Gunnison National Park, Colorado

Kirkendall-Spring / Sunflowers painted on barn wall, along State Highway, Bat Cave, Henderson County. North Carolina, USA, October 2013.

Gavin Hellier / Detail of Trishaws lined up against a blue painted wall in Chinatown district, Georgetown, Penang (Pulau Pipang) Malaysia 2008

Gavin Hellier / Detail of Trishaws lined up against a blue painted wall in Chinatown district, Georgetown, Penang (Pulau Pipang) Malaysia 2008

Gavin Hellier / Detail of Trishaws lined up against a blue painted wall in Chinatown district, Georgetown, Penang (Pulau Pipang) Malaysia 2008

Gavin Hellier / Detail of Trishaws lined up against a blue painted wall in Chinatown district, Georgetown, Penang (Pulau Pipang) Malaysia 2008

Gavin Hellier / Businessman riding his bicycle in front of a colourfully painted wall, Hamilton, Bermuda, 2007 model released

Gavin Hellier / Painted section of the Berlin Wall left standing in Potsdamer Platz, Berlin. As was the case in much of Berlin, many of the buildings around Potsdamer Platz were turned to rubble by air raids and heav...

Gavin Hellier / Painted section of the Berlin Wall left standing in Potsdamer Platz, Berlin. As was the case in much of Berlin, many of the buildings around Potsdamer Platz were turned to rubble by air raids and heav...

Gavin Hellier / Former section of Berlin Wall, view from former East Berlin. Also called East Side Gallery because it has been painted by many international artists, Berlin, Germany 2007

Gavin Hellier / Former section of Berlin Wall, view from former East Berlin. Also called East Side Gallery because it has been painted by many international artists, Berlin, Germany 2007

Roland Seitre / Wall painted with sloths, inside the sloth research and refuge centre. Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Fabio Liverani / Sign painted on wall advertising an internet cafe. Medina quarter, Fes, Morocco, December 2010.

Ross Hoddinott / Painted Lady butterfly {Vanessa cardui} resting on stone wall, Cornwall, UK. June

Juan Carlos Munoz / Marine iguana painted on the wall of a Hotel in Puerto Villamil, Isabela Island, Galpagos, January 2009

Juan Carlos Munoz / Marine iguana painted on the wall of a Hotel in Puerto Villamil, Isabela Island, Galápagos, January 2009

Tim Fitzharris / Cliffs and river, Painted Wall, Gunnison River, Black Canyon of the Gunnison National Park, Colorado

Shane Gross / Painted anemone (Urticina crassicornis) eating a Red sea urchin (Strongylocentrotus franciscanus) on rock wall, Vancouver Island, British Columbia, Canada, Pacific Ocean.

Shane Gross / Painted anemone (Urticina crassicornis) on rock wall off Vancouver Island, British Columbia, Canada.

Bruno D'Amicis / Painted mural in sanctum of Debre Sina Orthodox Church. Near Gorgora, Ethiopia. 2018.

Wendy Shattil / Information sign with painted butterflies at National Butterfly Center. The organisation is fighting in court to prevent construction of the USA-Mexico border wall through the 100 acre nature preserve...