The Commemorative Cross to the Romanian Heroes of the First World War, also called the Heroes' Cross on Mount Cairaman is a monument built between 1926 and 1928 on Caraiman Peak at an altitude of 2,291 m located in Romania, in the Bucegi Mountains of the Southern Carpathians. It has a height of 39.3 metres (129 ft) and the nearest town is Buşteni. The name of the monument is "The Heroes' Cross", but it is popularly known as the "Cross on Caraiman".

Bușteni is a small mountain town in the north of Prahova County, Muntenia, Romania. It is located in the Prahova Valley, at the bottom of the Bucegi Mountains, that have a maximum altitude of 2,505 m (8,219 ft). Its name literally means tree-logs in Romanian. One village, Poiana Țapului, is administratively part of the town, formerly a separate commune prior to 1950. According to the 2021 census, it has 8,368 inhabitants.