Treasure Hunting, searching for lost or hidden riches, especially jewels and gold or silver in the form of coins, bullion, ornaments, candlesticks, utensils, or other objects. Treasure hunters also search for lost or hidden statues, cannons, and other objects that are worth money because of their artistic or historic value. Treasure worth millions of dollars lies underwater in the remains of sunken ships. Pirate treasure is buried on some seacoasts and islands. Hoards of money and other valuables are concealed in buildings, in caves, and in the ground where they were hidden for safekeeping by their owners. Other riches lie in archeological sites such as tombs, buried cities, and abandoned ruins.