This cover from UNO Vienna depicts 3 stamps of the same type, celebrating the
Jeju Volcanic Island and Lava Tubes. The
Jeju Volcanic Island and Lava Tubes is a World Heritage Site in Jeju Province, South Korea. It was inscribed as one of the UNESCO World Heritage Sites in 2007 because of the Geomunoreum Lava Tube System and the exhibition of diverse and accessible volcanic features which are considered to demonstrate a distinctive and valuable contribution to the understanding of global volcanism. Jeju is a volcanic island 130 kilometers from the southern coast of the Korean Peninsula. The largest island and smallest province in South Korea, the island has a surface area of 1,846 square kilometers.
