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)

For the April cover shoot of Interview Magazine, photographers Mert & Marcus (Mert Alas and Marcus Piggott; Mert (from Turkey) and Marcus (Welsh from the UK) are one of the premier photographers in the world) captured the stunning Keira Knightley in an attractive black and white photo spread. Rocking pieces from Louis Vuitton, Balenciaga, DVF, and YSL, Knightley looks hot and seductive with a cigarette hanging from her boldly painted lips.

“A ball girl is an individual who retrieves balls for players or officials in a variety of sports including association football, American football, tennis, baseball and basketball”. – Wikipedia

Photo: A ball girl runs with 2 balls for Ivo Karlovic of Croatia against Fernando Verdasco of Spain in their second round match during the Mutua Madrilena Madrid Open tennis tournament at the Caja Magica on on May 11, 2010 in Madrid, Spain. (Photo by Clive Brunskill/Getty Images)

A woman looks at jellyfish during a media preview for the Epson Aqua Park Shinagawa aquarium's re-opening in Tokyo July 6, 2015. The aquarium will re-open on July 10 with new attractions including a pirate ship ride and a merry-go-round. (Photo by Toru Hanai/Reuters)

A child, from Municipal school Parana, poses during the project “Fencing School” in Rio de Janeiro, Brazil, March 30, 2016. Children in Rio de Janeiro lift their sights and their swords to new idols, as a round of fencing workshops takes to public schools. The International Fencing Federation, together with the Brazilian and state federations, will reach 40 public schools in March and April. The aim is to whip up a following for the Olympic sport, little known in the soccer-mad nation, as Rio sets the stage for the Summer Games in August. (Photo by Sergio Moraes/Reuters)

In this photo provided by Tasnim News Agency, relatives weep over the body of an earthquake victim, in Sarpol-e-Zahab, western Iran, Monday, November 13, 2017. An earthquake measuring 7.3 on the Richter scale rocked northern Iraq and Iran, the U.S. Geological Survey said on Sunday evening. Photo by Farzad Menati/Tasnim News Agency via AP Photo)

“Adventurers have gone deep underground to discover previously unexplored caves in these pictures. The awe-inspiring snaps show the cavers dwarfed by the huge series natural rock chambers in the Leye – Fengshan Geopark, China. Belgian photographer Francois-Xavier De Ruydts, 33, captured the team of explorers as they trekked through the deep wonderground in January 2014”. – Caters News. Here: Caving expedition in Fengshan, China, Guangxi province. (Photo by Francois-Xavier De Ruydts/Caters News)

The Costa Verde hotel. It is a fully outfitted two bedroom, Boeing 727 suite in Costa Rica. Located within tropical rainforest, Hotel Costa Verde’s rather unusual fuselage suite consists of a refurbished vintage 1965 Boeing 727 airframe. The aircraft was part of South-Africa Air in her previous life. Sitting atop a 50-foot pedestal just beyond a majestic national park, the remodelled jumbo jet’s interior is entirely Costa Rican teak panelling with Indonesian teak furniture and also features a private entrance up a river rock.