nord pas de calais mining basin [2012]

novgorod [1992]

nyungwe national park [2023]

oaxaca and monte albán [1987]

odesa [2023]

odzala kokoua [2023]

ogasawara islands [2011]

okapi wildlife reserve [1996]

1997

okavango delta [2014]

old rauma [1991]

olinda [1982]

olympia [1989]

ombilin coal mine [2019]

orkhon valley [2004]

osun osogbo [2005]

painted churches in the troodos region [1985]

palenque [1987]

palmyra [1980]

2013

pannonhalma benedictine abbey [1996]

papahanaumokuakea [2010]

paphos [1980]

paquimé [1998]

par force hunting landscape [2015]

paramaribo [2002]

pasargadae [2004]