Black holes are some of the strangest and most fascinating objects in the Universe... Here are the biggest mysteries and recent discoveries about these scary and amazing cosmic monsters!

Writing systems have been in place for several thousands of years but some have no relative or origins that can be traced back, which is pretty unusual and confusing... These unknown languages remain undeciphered to this day and still hold the secrets of fascinating people and societies, and have left a hole in the history of civilization.

Some were true heroes, some had the most heartwarming and touching stories, and some were just freaks of nature... but all of them marked history forever. They're all unique, including the one that stands next to you... so please never leave them behind :(