Men are sent down into the sludge to clear the sewers in the Bangladeshi capital Dhaka on May 23, 2018. The people who do the work aren’t even given any protective clothing or goggles and have to dig out the clogged-up muck with a stick or their bare hands. (Photo by Rehman Asad/Barcroft Media)

Spanish runner Francisco Contreras, 77, known as “Super Paco”, runs as he participates in the XVIII 101km international competition in the outskirts of Ronda, southern Spain, May 9, 2015. About 7,000 participants, including runners, mountain bikers and duathletes, run a track of 101 km (63 miles) in less than 24 hours through the “Serrania de Ronda” (Ronda Mountain Range) during this competition organised by the 4th Tercio (Regiment) “Alejandro Farnesio” of the Spanish Legion. The Puente Nuevo is 120 metres (394 feet) high over the gorge of the river that divides the city of Ronda. Picture taken using long exposure. (Photo by Jon Nazca/Reuters)

Lamon Reccord, right, stares and yells at a Chicago police officer "Shoot me 16 times" as he and others march through Chicago's Loop Wednesday, November 25, 2015, one day after murder charges were brought against police officer Jason Van Dyke in the killing of 17-year-old Laquan McDonald. (Photo by Charles Rex Arbogast/AP Photo)

A demonstrator waves Turkey's national flag as he sits on a monument during a protest against Turkey's Prime Minister Tayyip Erdogan and his ruling AK Party in central Ankara June 2, 2013. Erdogan accused Turkey's main secular opposition party on Sunday of stirring a wave of anti-government protests, as tens of thousands regrouped in Istanbul and Ankara after a lull and trouble flared again in the capital. Police used tear gas on protesters in Ankara but the clashes were relatively minor compared with major violence in Turkey's biggest cities on the previous two days. (Photo by Umit Bektas/Reuters)

Retired teacher Geoff Ostling displays his tattooed skin at a portrait session at his home in Petersham on May 11, 2009 in Sydney, Australia. The 62-year old has pledged to donate his skin to the National Gallery in Canberra after his death. Ostling, who did not get his first tattoo until he was in his forties, is now covered in the artwork by artist eX de Merci from neck to ankle with the theme 'all the flowers of a Sydney garden'. (Photo by Lisa Maree Williams/Getty Images)

Suso33 spent the last few days perched on a yellow crane to work on this impressive new piece on the streets of Madrid, Spain. Using a rather simple technique, the Spanish artist painted a brilliant piece which enters directly amongst our favourite artworks this year. This mural is a concentration of slightly outlined figures which are persecuted by their shadows, but if the viewer, instead of focusing on details, looks at the entire picture, what he sees is another figure. Take a look at more images after the jump and if you are in the area, you'll be able to find the piece at plaza del Poeta Leopoldo de Luis.

Performers Aidee Arely Ramirez Arellano (left) and Viridiana Mayte Arica Rico from Banda Monumental De Mexico who are part of this year's Royal Edinburgh Military Tattoo cast, display their Monarch butterfly costumes in Princes Street Gardens, Edinburgh on Thursday, August 25, 2022, ahead of the final weekend of this year's show, Voices. The butterfly costumes are a tribute to the Duke of Edinburgh and the Queen's Platinum Jubilee, inspired by an image of the Duke of Edinburgh watching the butterflies migration during a trip he attended to support conservation of the species. (Photo by Jane Barlow/PA Wire)

People throw turnips at the Jarramplas as he makes his way through the streets beating his drum during the Jarramplas Festival in Piornal, Spain, Tuesday, January 20, 2015. Jarramplas is a character that wears a costume made from colorful strips of fabric, and a devil-like mask and beats a drum through the streets of Piornal while residents throw turnips as a punishment for stealing cattle. The exact origin of the festival are not known, various theories exist from the mythological punishment of Caco by Hercules, to a cattle thief ridiculed and expelled by his neighbors. The Jarramplas Festival takes place every year from the 19th till the 20th of January on Saint Sebastian Day. (Photo by Daniel Ochoa de Olza/AP Photo)