There are many types of collections. Some are formed by purposefully collecting certain objects, such as stamps or coins. However, some collections are only a byproduct of an obsession, a quirk of mind. For example, Paul Brockmann got into the habit of buying his girlfriend and later his wife a dress every time they went ballroom dancing. It might seem excessive to some, but it was his way of showing his affection. Overtime, this collection grew to be enormous, counting 55,000 dresses in total. Basic math tells us that either they went ballroom dancing three times per day for every day of their lives, or he bought them in huge bundles every time.

The Anthem Veterans Memorial was created in Anthem, Arizona, in order to commemorate the service and sacrifice of the US soldiers that have lost their lives in order to bring peace and democracy to many nations throughout the world. Without these brave souls so many countries around the world would not be able to enjoy the fruits of Western Democracy. These pillars serve as a place of honor for military veterans, their friends and family, and to those people who want to pay their respect to the courageous men and women who continue to serve the United States. (Photo by Anthem Community Council)

“24.27 N, 81.44 W. These coordinates mark the spot of the final resting place of an old brave soldier, the USS General Hoyt S. Vandenberg. In 2009 it underwent a complete change when the creaky steel monster became a mystical bearer of secrets. In May of that year, the Vandenberg was lowered down into the darkness of the ocean off the coast of Florida to become an artificial reef, where it would dwell in rigor mortis at a depth of 130 feet. This lively, animate, secretive nothingness, this menacing, wild emptiness would haunt and seduce the renowned Austrian photographer and passionate diver Andreas Franke...”. – The Sinking World (Photo by Andreas Franke)

Visitors to the Nightmare Fears Factory in Niagara Falls, Canada, are obliged to navigate their way round the supposedly haunted building in total darkness while live actors jump out of them. The Nightmare Fears Factory team have been using hidden cameras to take pictures of their guests' terrified reactions, which they've then posted on the company's Facebook page. And it turns out they're all pretty funny. (Photo by Nightmare Fears Factory)

Jakob Wagner was born 1985 in Herdecke, Germany. In summer 2008, he successfully completed his three-year apprenticeship as a photographer. He has since been living in Duesseldorf, where he has mainly been working as a freelance photographer, image editor and photo assistant. His work has taken him to many different countries around the world. When Jakob Wagner is not at work by assignment, he devotes much of his time and passion to his personal photography projects, which will culminate in future books and exhibitions. His photographs are available in signed and limited editions.

“Alice in Waterland” is a beautiful series of photographs re-imagining the Lewis Carroll classic underwater. It’s a creation of photographer Elena Kalis, who lives on a small island in The Bahamas, surrounded, she says, “by pristine clear warm water. Underwater is where I spend a lot of time; snorkeling, diving, photographing. It is fascinating how the world changes down below: light, sound, gravity and proportions are different from what we are used to”. (Photo by Elena Kalis)

Kazakh nomads have been grazing their livestock in Mongolia for hundreds of years. Fascinated by the bond between hunter and eagle, photographer Palani Mohan has spent the last few years documenting the burkitshi. Mohan's photos of the landscape, isolation of the hunt, and most of all the trusting relationship between man and bird, convey the importance that the eagle plays in their lives. (Photo by Palani Mohan)

Roma people are seen in a Romani camp installed along La Petite Ceinture, an abandoned railroad line, in Paris, France, February 2, 2016. More than 350 Roma people, who have been living here since the last summer, face eviction from the makeshift camp this week. (Photo by Jacky Naegelen/Reuters)