Beside the Algeria card, Verena also gave me 2 unesco cards from Laos. This card with the Wat Phou is on the UNESCO list under the name Vat Phou and Associated Ancient Settlements within the Champasak Cultural Landscape.
"Wat Phou is a ruined Khmer temple complex in southern Laos. It is located at the base of mount Phu Kao, some 6 km from the Mekong River in Champasak province. There was a temple on the site as early as the 5th century, but the surviving structures date from the 11th to 13th centuries. The temple has a unique structure, in which the elements lead to a shrine where a linga was bathed in water from a mountain spring. The site later became a centre of Theravada Budhist worship, which it remains today." - in: wikipedia