It is more than thirty years since the last letter was received from The Zodiac Killer. Are the police any closer to identifying the killer?

Many theories were formulated as to what happened to the crew of Mary Celeste, but to date this mystery has yet to be solved.

There are a few likely locations for the tomb of Genghis Khan. One is Kherem (Wall Site), which is 200 miles from the capital.

Amelia Earhart’s last flight was one of the saddest, most publicized disappearances of all time. What happened to the brave lady pilot?  

Oak Island is the subject of legends, pirates, curses, and buried gold. Since the early 1800s, it has cost millions and still ongoing.

Theories on the death of Alexander the Great include natural causes, malaria and typhoid fever. The West Nile virus is also to be considered.

There are many who are certain that the Tarim mummies represent the first Caucasians to settle in the area. When did Europeans first arrive in China?

On 28 July 1938 the Hawaii Clipper disappeared over the Pacific. Experts have been unable to determine what happened to the plane.