Felice Varini is a Swiss artist who was nominated for the 2000/2001 Marcel Duchamp Prize, known for his geometric perspective-localized paintings in rooms and other spaces, using projector-stencil techniques. According to mathematics professor and art critic Joël Koskas, “A work of Varini is an anti-Mona Lisa”.

A freediver uses weights, yoga and camera tricks to create the illusion of walking underwater for a film which took three years to shoot and was completed in 2013 in El Hierro, Canary Islands. Like a scene from a Hollywood science-fiction movie, this trick footage shows a man apparently walking on water. The underwater film was shot by biologist Armiche Ramos and brothers Armando and Francisco del Rosario, who used their expertise in freediving to create the illusion. No computer graphics were involved in the production, with the team relying solely on their own skills – and a few hidden secrets. (Photo by Ocean Brothers/Barcroft Media/ABACAPress)

An arm holding a giant gun appears to explode through a wall, while elsewhere a man walks a tiger on a leash. These breathtaking pencil drawings are the work of 31-year-old artist Ben Heine, who lives and works in Rochefort, Belgium. The “anamorphic illusions”, part of the artist's “Pencil Vs Camera” series, appear slightly distorted unless viewed from the exact same perspective in which they were created. Photo: Visual artist Ben Heine at work in his studio while he creates one of his “anamorphic illusions” in Rochefort, Belgium. (Photo by Ben Heine/Barcroft Media)

“Environmental Migrants: The Last Illusion” by photographer Alessandro Grassani, documents the life of people in Kenya, Mongolia and Bangladesh who migrate to escape environmental stresses to the city of their own countries in hopes for a better life. Here: Asia, Mongolia, March 27, 2011. A view of Ulaan Baator over the shoulder of a slumbering drunk. Alcoholism is a huge problem in the city, home to almost half of Mongolia's people. The capital's population has doubled in the past two years. High levels of unemployment and poverty await herders who abandon rural areas and arrive in the city, illiterate and untrained in any skills necessary for urban jobs. (Photo by Alessandro Grassani)

Artist Princess Tarinan von Anhalt throws paint into the flow of air coming from the engine of Flexjet’s Learjet 40 XR engine to create a painting on a canvas at Signature Flight Support in West Palm Beach, Florida. The artist associated with the Jet Art Group used the help of Flexjet and their plane to spray paint on a canvas to create distinctive paintings to celebrate the 50th anniversary of Learjet. (Photo by Thomas Cordy/The Palm Beach Post)

Michael Hughes creates cool optical illusions by placing cheap souvenirs in front of famous landmarks. Michael has discovered the technique back in 1998 when he held up a postcard he bought for his daughter on the tourist platform at the Lorelei cliffs next to the river Rhine. “I was amazed because it just seemed to fill a massive grey hole that was in the sky and it was the exact position the photographer had taken the picture from,” said Michael to Daily Mail.

Internationally acclaimed German three-dimensional artist Manfred Stader adds finishing touches to his artwork in Cape Town, South Africa on 21 November 2010. Stader created this masterpiece to celebrate the opening of Speedo's first dedicated concept store in Africa. (Photo by Foto24/Gallo Images/Getty Images)

Fascinated by the texture and color of water artist Elizabeth Patterson challenged herself to recreate the absurdly complex formation of water droplets on rain-streaked windshields. Her ongoing series titled Rainscapes blends drawing, hyperrealism, and traditional landscape techniques resulting in images that can be seen as both real and abstract.