A cenotaph is an "empty tomb" or a monument erected in honour of a person or group of people whose remains are elsewhere. It can also be the initial tomb for a person who has since been interred elsewhere. Although the vast majority of cenotaphs are erected in honour of individuals, many of the best-known cenotaphs are instead dedicated to the memories of groups of individuals, such as the lost soldiers of one country or empire. (wiki)
World Heritage Sites connected to 'Cenotaph':