Everyone wants to get something for nothing - whether it's a lucky upgrade that means you can turn left when you get on a plane instead or heading off into the economy seats, or even getting a few extra features thrown in for free when you buy a new car.

As some of the sharpest businesses around, no-one understands this quite as well as casinos and that's why they all have a system that they call comps. It's short for "complimentary offers" and these are special treats specially designed to reward you for your loyalty to the casino in question. They're basically bonuses.

People walk on a sightseeing platform in Zhangjiajie, Hunan Province, China, August 1, 2016. China has opened a 100-metre-long glass skywalk stretching around a cliff on the side of the Tianmen Mountain. The skywalk provides a view of a 300-metre drop and overlooks Tongtian Avenue, a mountain road with 99 turns that snakes up the mountain. When translated in English, it means “Avenue to the Sky”. (Photo by Reuters/Stringer)

Two holy men with a decorative faces and headdresses, taken in Kathmandu, Nepal. Wandering through the cities and forests of Nepal are the holy men, or Sadhus, who have left all materialistic pleasures behind to live a life devoted to God. Their appearances vary from brightly coloured face paints, and decorations, to minimalistic practical clothing, but they all represent the fundamental values and meanings of Hinduism. Danish photographer Jan Moeller Hansen visited the ancient capital city of Kathmandu between 2013 and 2016 and documented the mysterious holy wanderers. (Photo by Jan Moeller Hansen/Barcroft Images)

“When I was 8 years old, my parents paid a smuggler to take me across the Himalayas, a weekslong walk over the mountains from Tibet to India. It was a trek that tens of thousands of other Tibetans have taken since the Dalai Lama fled a failed 1959 uprising against Chinese rule. My parents must have had their reasons to send me here; they must have had the best of intentions. But 18 years later, I still don't know why they did it. They are not political people. They are small farmers who raise barley and a few yak in a rural area not far from Lhasa, the Tibetan capital. I have not seen them since I left...”. – Tsering Topgyal via The Associated Press. (Photo by Tsering Topgyal/AP Photo)

Farhad Moshiri, an Iranian artist working a lot with carpet media using it as a mean to joke about consumerism culture, was one of the participants of the group show Love Me Love Me Not of Yarat! pavilion curate by Dina Nasser-Khadivi (read on her curating Lalla Essaydi's Harem here) at Venice 2013 Art Biennial. The installation consists of more than 500 carpets depicting celebrities-covered magazines from all over the world.

Is it the surface of the Mars or Venus or an undiscovered planet? Not at all. These pictures aren’t what you think they are. Christopher Jonassen, a Norwegian photographer shot these beautiful and otherworldly series called ‘Devour of frying pan bottoms’, which are visually similar to craters and scars on a planet’s surface. In his series Jonassen refers to a quote of Jean-Paul Satre who said: ‘To eat is to appropriate destruction’ and the meaning of the word ‘devour’, which stands for eating up greedily, destroying, consuming, and wasting.

Artist Victor Nunes combines every-day objects with simple illustrations to turn them into pictures of faces, animals and other playful scenes. His images invite us to look at the world differently and find creative images in our surroundings. Nunes’ art is a great example of pareidolia, which is our propensity to give meaning to random objects (like in this post about seeing faces in random objects). It’s the reason why we associate a smiley face with a human face and why some of Nunes’ pieces of popcorn or bread resemble faces to us.

Spectators in Moscow were treated to the site of humorously designed makeshift aircraft plunging into the Muskova River during the Red Bull Flugtag Moscow 2011 competition. 38 teams took part at the Flugtag – which means “flying day” – a competition in which teams in fancy dress attempt to pilot human-powered, home-made flying machines off a six-meter-high platform into water.

Photo: A makeshift aircraft plummets into the Moskva River during the Red Bull Flugtag Moscow 2011 competition. (Photo by Sergei Karpukhin/Reuters)