I also managed to compile a big list of WHS that are also featured as the 80 treasures of the world as selected by Dan Cruikshank for his BBC documentary.
not sure if this is a good route to start as there are plenty of other lists that can be cross referenced with but I just happen to be a fan of this series so thought I would suggest it.
Could also do one for WHS visited by Michael Palin in his travel series.

Feel free to write it off if you don't think it is to useful/ interesting or sets a bad prescedent

Machu Picu
Nazca lines
Chan Chan
Rapa Nui
Palenque
Mexico City (Man Controller of the Universe)?
Mesa Verde
Monticello
Statue of Liberty
Kakadu
Borabudur
Ayutthaya
Angkor Wat
Kyoto Gardens
Imperial palaces of Beijing (Forbidden City)
Summer Palace Beijing
Great Wall of China
Mausoleum of the First Qin Emperor
Sigiriya
Polonnaruwa (Giant Buddha)
Kandy (Temple of the Sacred Tooth)
Taj Mahal
Samarkand
Bukhara (Trading Domes)
Esfahan (Imam mosque)
Bisotoun
Persepolis
Damascus (Al-Hamidiyah Souk)
Petra
Jerusalem (Temple Mount)
Axum
Lalibella
Djenne (Mosque)
Cliff of Bandiagara (Dogon Paintings and masks)
Leptis Magna
Pyramid Fields of Giza
Luxor (Nefertiti's tomb/ edfu Temple)
Goreme
Istanbul (Hagia Sophia)
St Petersburg (Peter the greats cabin)
Solovetski Monastery
Wieliczka Salt Mine
Bauhaus or Tugendhat villa (Brno Chair)*
Mostar
Acropolis (Parthenon)
Rome (Pantheon)
Florence (Medici Chapel)
Venice (Grand Canal)
Alhambra
Chartres Cathedral

*the chair is visited in and illustrative of the Bauhaus Dessau but it has a strong link to the tugendhat Villa where it is found throught the house, which is in Brno hench the name of the chair)