If Alice in Wonderland slid down the rabbit hole and landed underwater, she might have found what San Diego-based recreational diver Michael Harlow claims to have come across: millions and millions of shimmery purple translucent crystals. The only problem is, he has no proof they exist. And, so far...

U.S. officials offered to help Spain in the court fight over the sunken treasure -- if Spain would only return the favor.

Laying deeper than the Titanic, the wreck is believed to hold the largest haul of precious metal lost at sea.

The ship's wood has nearly disintegrated, but a copper sheathing remains, along with a variety of artifacts.

Last week an organization called Noah's Ark Ministries called a press conference in Hong Kong to announce that they had made one of the most significant archaeological discoveries in history. Yeung Wing-Cheung claims he and his research team located the remains of Noah's Ark on Turkey's Mount Arara...

The Italian ocean liner famously sank in the Atlantic in 1956.

A 17-ton trove of silver coins recovered from a Spanish ship sunk by British warships in 1804 returns to Spain.

The brass bell had been bolted to the wreck of the Italian cruise ship, which was under 24-hour surveillance.