Included among the many lists in National Geographic's book "The 10 Best of Everything" is this. Learn more about the gardens at
travel.nationalgeographic.com/travel/top-10/gardens/
1. Château de Versailles (Versailles, France)
2. Royal Botanic Gardens at Kew (Kew, England)
3. Powerscourt Gardens (Enniskerry, Ireland)
4. Butchart Gardens (Vancouver Island, British Columbia)
5. Villa d'Este (Tivoli, Italy)
6. Dumbarton Oaks (Ellis Island)
7. Villa Éphrussi de Rothschild (St.-Jean-Cap-Ferrat, France)
8. Stourhead (Warminster, England)
9. Master-of-Nets Garden (Suzhou, China)
10. Sans Souci (Potsdam, Germany)