And this is a really interesting related video on underwater discoveries.

Keep an eye out for further updates on this recent monolith!  We hope you enjoy the video.

And in a more recent artifact that was also discovered and presented in the second video, this 16th century shipwreck has gotten a lot of attention.  When it comes to ships the titanic is the most famous but there are a lot of others like this one with plenty of interesting info about the past:

An unidentified 16th century shipwreck was discovered on the Little Bahama Bank in 1991. Questions abounded. Was it one of Columbus ships? Was it carrying conquistadors? Or was it a lost Spanish treasure galleon? Through a cooperative effort involving archaeologists from the Mel Fisher Maritime Museum of Key West, Florida, the shipwreck salvage company St. Johns Expeditions, and the Government of the Bahamas, this remarkable time capsule has become the subject of an intensive research effort. With continuing detective work and problem solving, the story of this sunken mystery ship is emerging.

thanks to dailymail.co.uk for the great info