Here, Live Science takes a look at some of these lost treasures that may never be found. Some of these treasures are now likely destroyed, but some may still exist and one day be recovered.

Location Found Sierra Nevada ... was one of the largest and most valuable deep-ocean treasures ever recovered in U.S. waters. The 2003 discovery of the SS Republic became one of the most ...

Record increase for treasure finds in England, Wales and Northern Ireland - Norfolk continues to hold the title of the most ...

An 11-year-old could be in for a big prize after he uncovered some buried pirate treasure ... it is extremely valuable. The Pirates tried to get ahead of it being found way back in November ...

A famed Viking-age silver hoard discovered in Scotland may have belonged to an entire community of people, rather than one ...

Look for tools with minimal rust, intact handles, and original branding to identify the most valuable ones. The Beanie Baby craze of the ’90s left behind a treasure trove of collectibles.

A HUGE "fortune” of 400-year-old treasure has been found crammed inside the leg of ... The hoard included a rare “golden angel” coin, gold ducats, various silver coins and hundreds of ...

The most valuable items of this kind were stolen toward the ... Unsurprisingly, the searchers found no trace of the lost treasure. In another version of the myth, the regalia were at some point taken ...

This is the commitment of a team of scientists from Scotland who have found an underwater treasure that could finally eliminate diesel fuel from shipping. Neither pirate chests of gold nor oil: the ...

Since its debut on our screens in 1997, Antiques Roadshow has delighted viewers with forgotten family heirlooms and bargain treasures ... the guitar the “most expensive thing” he had seen ...