The Kotel Ha-Maaravi, or Western Wall, is considered the holiest spot for Jews today. Located in the Old City of Jerusalem, the Kotel is the only part of the ancient Jewish Temple that remains standing. It was actually part of the retaining wall that held up the Temple Mount, on which the Temple stood. Today, Jews from around world visit the Kotel Ha-Maaravi to pray and to place notes in the cracks between its enormous stone blocks.