Street art started out as unintelligible words written on concrete walls with spray paint by gang members or silly kids. Now, however, it evolved into a unique form of art that might stun and inspire awe in the onlookers. For example, the artist that goes by the name 1010 specializes in creating optical illusions. His creations look like portals into other dimensions, without any hint that it might simply be a flat concrete wall painted over with multicolored paints. These pieces of art are so good that it is hard not to reach out into these ‘holes’ to find out whether or not they are real. (Photo by 1010)

Festival-goers enjoy the mud during the annual Boryeong Mud Festival at Daecheon Beach on July 18, 2015 in Boryeong, South Korea. The mud, which is believed to have benefical effects on the skin due to its mineral content, is sourced from mud flats near Boryeong and transported to the beach by truck. (Photo by Chung Sung-Jun/Getty Images)

Randy Scott Slavin's photography is surrealism based in reality. His work portrays land and cityscapes in a 360 degree view, a perspective closer to that of the human eye than a 2D photograph, he says. Slavin's "Alternate Perspectives" is a series of photographs of a single location or landmark pieced together to create a 360 degree perspective in a flat image. The results are whimsical, and occasionally eerie, scenes that reflect the portion and scale of Slavin's surroundings when he took the photo.

Police detain a protester during a demonstration against the recent gang-rape of a woman in a moving car, according to local media, in Kolkata, India May 31, 2016. A woman was kidnapped and gang-raped by at least four men on May 29 in the Salt Lake area of the city and is currently being treated in hopsital, local media reported. (Photo by Rupak De Chowdhuri/Reuters)

These picture look like an artist has painted abstract patterns on canvas – but in fact they are natural rivers captured on camera. The spectacular rivers in Iceland's central highlands and southern parts originate from glaciers, which is why the water is a milky colour. They are shallow rivers and the water spreads quickly over a flat and sandy surface, creating random and beautiful patterns. Photographer Andrey Ermolaev from Moscow, Russia, flew 500ft above the unique sight in a small plane. (Photo by Andrey Ermolaev/Solent News)

There is something strangely appealing about the set of pictures created by Sandro Giordano in a series “In Extremis (Bodies With No Regret)”. Could it be the absurdity of the situation? Or the fact that our brain tries to make up some bizarre story to justify what is happening in the pictures? Of course it is impossible to explain why a pair of tennis players ended up lying flat on the ground with a pack of bananas hanging on the net, even if we forget about the tennis racket lodged in the neck of one of the players. Nevertheless, it is fun to recreate these scenes in your mind just seconds before the tragedy took place. (Photo by Sandro Giordano)

The artworks that Alexa Meade makes are very unique and original. A usual painter creates a 2D or a 3D drawing on flat 2D surface. Alexa, on the other hand, draws over the body of a regular person, making them look like a 2D painting. The pictures of these people are almost uncanny, as you realize that the eyes “paintings” are real, and suddenly it dawns upon you that you are seeing a living and breathing human being. It is weird how we perceive this world, and how easy it is to trick our brain into thinking that it’s seeing a two-dimensional object. (Photo by Alexa Meade)