The Tomb of the Unknown Martyrs is also located on the Red Square. It is a deep red marble tomb facing the north, East and west. On the West side, there are bronze sculptures with steel helmet and flag. Its shape is simple and lively. The Tomb of the Unknown Martyrs has a never-extinguishing flame. Every morning, from 8 a.m. to 8 p.m., the Moscow Kremlin Guard will be on duty here. It will change its guard every hour to watch the whole process of change. Now it is also an important tourist project.