Historical events that nobody can explain

In the digital age, you expect to have every mystery solved and every question answered. Truth is, history is full of extraordinary events and occurrences which have remained unexplained for years. There have been disappearing islands, never-ending thunderstorms, and what could be a message from aliens. Here's a selection of the most mind-blowing mysteries in history. Click on to examine the historical events that nobody can explain.

You may also like: The best red carpet looks of all time