Pyramids of Giza September 29, 2017 1972 2005 2007 airmail censor +1 Egypt joint issue Nepal ofdc unesco United Nations 1972 2005 2007 airmail censor Egypt joint issue Nepal ofdc unesco United Nations
Terracotta Army March 30, 2016 1983 2013 China ofdc postcrossing unesco + United Nations 1983 2013 China ofdc postcrossing unesco United Nations
Delos September 21, 2014 1961 1970 2004 Greece mosaic unesco + United Nations 1961 1970 2004 Greece mosaic unesco United Nations
Rock Art June 13, 2012 1967 1984 cachet rock art Spain unesco + United Nations 1967 1984 cachet rock art Spain unesco United Nations
Borobudur Temple March 25, 2012 1961 1971 2014 2015 cachet +3 Indonesia maxicard mini sheet Netherlands ofdc postcrossing unesco United Nations 1961 1971 2014 2015 cachet Indonesia maxicard mini sheet Netherlands ofdc postcrossing unesco United Nations
Pompeii June 06, 2011 1977 2002 cachet cancel Great Britain Italy postcard unesco + United Nations 1977 2002 cachet cancel Great Britain Italy postcard unesco United Nations