Historical photographs can feel unsettling without showing anything particularly frightening. Sometimes it is an unfamiliar piece of equipment, an expression that is difficult to read, or an ordinary scene that looks completely different once a century has passed. Even cheerful gatherings can become strangely eerie when everyone is wearing the same mask. That uneasy feeling is part of what makes old photographs so fascinating: we recognize the people and situations, yet something about them can still feel surprisingly distant from our own world. Reddit’s history enthusiasts have collected plenty of images that land somewhere between interesting and slightly uncomfortable to look at. Here are 15 historical photos that air on the side of uneasy.©RedditEven the Mule Needed a Gas MaskTwo German soldiers posed with their mule in protective masks in 1916. The matching equipment makes the scene look almost dystopian.©RedditMedical Therapy Looked Very Different in 1956Animals were brought in as therapy for patients using iron lungs in 1956. The friendly visit looks surprisingly surreal surrounded by all that machinery.©RedditThe Mickey Mouse Club Looked Surprisingly SinisterA Mickey Mouse Club gathering around 1930 filled a theater with people wearing identical masks. What was meant to be fun now looks undeniably eerie.©RedditMoshe Dayan Shared Corn With a Family in VietnamMoshe Dayan was photographed sharing corn with a local family while visiting Vietnam in 1966. The strangely intimate moment feels worlds away from the conflict surrounding his trip.©RedditA Polar Bear Reached Out to a PhotographerA photographer got remarkably close to a polar bear and her cubs for this unusual shot. One cub even appears to be clinging to his leg.©RedditAmericans Marched Because They Wanted BeerProhibition inspired crowds to march through the streets carrying enormous “WE WANT BEER” signs. Their incredibly serious expressions make the demand even more memorable.©RedditThree Generations Posed Outside Their Irish CottageThree generations of women posed outside their stone cottage in Ireland in 1927. The color makes the century-old scene feel almost unnervingly recent.©RedditA Child Raised a Hammer Above a Sea of ProtestersA young boy raised a hammer during a 1990 rally supporting striking miners in Turkey. His expression and the enormous crowd behind him make the image especially striking.©RedditA Pilot Flew Under a BridgeSoviet stunt pilot Valentin Privalov flew his jet beneath a bridge over the Ob River in 1965. The tiny gap between the aircraft, water, and bridge makes the photograph genuinely nerve-racking.©RedditThe Pacific Was Packed With WarshipsA huge portion of the U.S. Pacific Fleet gathered at Ulithi Atoll during World War II. From above, the sheer number of ships makes the ocean look almost unnaturally crowded.©RedditBaseball With the Capitol in the BackgroundChildren played baseball in a poor Washington, D.C. neighborhood in 1940, with the U.S. Capitol rising behind them. The stark contrast makes the photograph difficult to look away from.©RedditTaking the New Car for a SpinThree friends took a joyride in their “new” vehicle in Ohio around 1924. Its enormous wooden wheels make the car look like something caught halfway between a wagon and an automobile.©RedditAn Exhausted Firefighter Could Barely Keep GoingAn exhausted Los Angeles firefighter was photographed down on the pavement while his colleagues continued working around him. Nothing graphic is visible, but the image captures just how physically overwhelming the job could become.©RedditA Child Was Asked to Draw HomeTereska, who had grown up amid the devastation of World War II, was photographed drawing “home” on a blackboard in Poland in 1948. The chaotic lines make the otherwise ordinary classroom photograph deeply unsettling.©RedditA Swimming Mask Protected Women From the SunWomen in the 1920s could wear full-face swimming masks designed to protect their skin from the sun. The blank expression and tiny eyeholes make the practical invention look considerably more sinister today.The post 15 Historical Photos That Air on the Side of Uneasy appeared first on Den of Geek.