With so many people living in urban environments nowadays, it’s inevitable that weird stuff is going to happen. But some of that weirdness leaves behind mysteries that not even Sherlock Holmes could solve! From pursuers in the sky to a phone number you should never call, grab your magnifying...

We take a lot of objects and items that we use every day for granted. But did you know some of them have incredible hidden components that are actually designed to save your life? From secret details in planes and cars, to little known features on your phone, backpack, and even pen lid. So, get...