Some people speculate that its in near by Jordan.II Maccabees 2:4-10, written around 100 BC, says that the prophet Jeremiah, “being warned by God” before the Babylonian invasion, took the Ark, the Tabernacle, and the Altar of Incense, and buried them in a cave on Mount Nebo. Mount Nebo is located in present day Jordan.
When it shows itself, it will be an awesome moment.