The world is a big place, and sometimes you don't have all the answers. The internet does, though. There's even a subreddit called "What Is This Thing?" where people post photos when they have no clue what they're looking at and others try to identify it. Can you believe it? A place on the internet where you can ask and not be afraid of getting ridiculed for your ignorance? Unbelievable, I know. That's why Bored Panda has compiled a list of some of the most intriguing detective stories on that page, and you will surely learn a thing or two. From an unorthodox public bathroom door design to a hole in the sky, these pictures and the explanations behind them are real eye-openers. Scroll down to enjoy the images and upvote your favorites!