In the 11th century BC, King David of Israel unified Israel and Judah, establishing the Kingdom of Israel-Judah. During the reign of his son Solomon, the kingdom reached its peak, particularly with the construction of the temple in Jerusalem. According to the Bible, the temple built by Solomon took seven years to complete, featuring grand scale and luxurious decorations, making it a significant holy site in Judaism. Within the temple was said to be the 'Golden Ark of the Covenant,' which is rumored to be Solomon's secret treasure. However, with the conquest of Jerusalem by the Neo-Babylonian Empire, the whereabouts of Solomon's treasures and the Ark became a mystery that has puzzled many throughout history. Countless individuals have attempted to uncover this enigma, but to this day, no one has succeeded.