It's easy to become obsessed with the unsolved mysteries of this Earth. Most people like to think that anything can be figured out or solved... but that's just not true. Take these 7 mysteries, for example. They have been mysteries for decades (if not longer). No matter how many experts have examined the cases, they are still shrouded in mystery.
1.) The Aluminum Wedge of Aiud
In 1974, this is a wedge-shaped object found 1.2...
