A nice UNESCO cover from Vietnam, depicting 2 stamps of same type celebrating the Santo Domingo de Atarrés Fortress in La Habana (Cuba). The Santo Domingo de Atarrés Fortress its part of the UNESCO site called
Old Havana and its Fortifications - in 1982, Old Havana was inscribed in the UNESCO World Heritage List, because of its unique Baroque and neoclassical architecture, its fortifications, and its historical importance as a stop on the route to the New World. A safeguarding campaign was launched a year later to restore the authentic character of the buildings.
