World Heritage letter "I"
- Island of Gorée(Senegal)
- Independence Hall(United States of America)
- Ichkeul National Park(Tunisia)
- Iguazu National Park(Argentina)
- Iguaçu National Park(Brazil)
- Ironbridge Gorge(Britain)
- Imperial Palaces of the Ming and Qing Dynasties in Beijing and Shenyang(China)
- Itchan Kala(Uzbekistan)
- Island of Mozambique(Mozambique)
- Itsukushima Shinto Shrine(Japan)
- Ir. D.F. Woudagemaal (D.F. Wouda Steam Pumping Station)(Netherlands)
- Ibiza, Biodiversity and Culture(Spain)
- Imperial Tombs of the Ming and Qing Dynasties(China)
- Ischigualasto / Talampaya Natural Parks(Argentina)
- Island of Saint-Louis(Senegal)
- Isole Eolie (Aeolian Islands)(Italy)
- Ilulissat Icefjord (Denmark)
- Incense Route -- Desert Cities in the Negev (Israel)
- Islands and Protected Areas of the Gulf of California(Mexico)
- Iwami Ginzan Silver Mine and its Cultural Landscape(Japan)
- Imperial Citadel of Thang Long-Hanoi(Viet Nam)