The Cenotaph is a war memorial in London designed by Sir Edwin Lutyens and unveiled in 1920 to honor the British and Commonwealth soldiers who died in World War I. It later included casualties from World War II and other conflicts. The word "cenotaph" means 'empty tomb', symbolizing the absence of the fallen soldiers whose bodies were buried where they fell. The memorial, built from Portland stone, is simple yet powerful, with minimal decoration. It has become a focal point for public mourning and remembrance services, attracting millions of visitors annually.