UNESCO (the United Nations Educational, Scientific and Cultural Organization) https://en.unesco.org currently lists 981 sites around the world as places of historic, cultural, and natural heritage having universal value. This website http://whc.unesco.org/en/list provides a list, maps, and the criterion for why each location was deemed worthy of being included. Also worth noting is that occasionally places are "delisted", usually because development encroaches on the very nature of the place to the point of detracting from its unique heritage.

Harvey and I have enjoyed these wonderful places:

Bermuda

  1. Historic Center of St. Georges

Canada

  1. Old Town Lunenberg
  2. Historic Center of Quebec 

England

  1. Stonehenge
  2. Tower of London
  3. Westminster Abbey
  4. City of Bath

France

  1. banks of the Seine River, Paris
  2. chateaux of the Loire Valley
  3. Palace of Versailles
  4. Cathedral at Chartres

Italy

  1. Historic Center of Rome
  2. Historic Center of Naples
  3. Historic Center of Florence
  4. Historic Center of San Gimignano
  5. Historic Center of Siena
  6. Venice
  7. Pompeii
  8. Amalfi Coast
  9. Piazza del Duomo, Pisa
  10. Assisi
  11. Historic Center of Verona
  12. Dolomites
  13. Matera
  14. Royal Palace (La Reggia), Caserta
  15. Alberobello
  16. Church of Santa Sofia in Benevento
  17. Archeological site of Paestum

Poland

  1. Historic Center of Krakow
  2. Historic Center of Warsaw
  3. Medieval Town of Toruń
  4. Wieliczka Salt Mines
  5. Castle of the Teutonic Order in Malbork
  6. Concentration Camps at Auschwitz-Birkenau
  7. Centennial Hall, Wrocław

Switzerland

  1. the Jungfrau

United States

  1. Yellowstone
  2. Independence Hall
  3. Great Smoky Mountains National Park
  4. Statue of Liberty

Vatican City