Which national park in the United States was designated as a UNESCO World Heritage site in 1978?

The Putorana Plateau, a UNESCO World Heritage site, is located in which Russian region? What is the name of the ancient forest in Poland and Belarus, designated as a UNESCO World Heritage site in 1979? Which river delta in Bangladesh was designated as a UNESCO World Heritage site in 1997? What is the name of the famous cave system in Vietnam, designated as a UNESCO World Heritage site in 2003? What is the name of the famous canyon in the United States, designated as a UNESCO World Heritage site in 1979? The Galapagos Islands are a UNESCO natural World Heritage site located in which country? The Iguazu Falls are a UNESCO natural World Heritage site located on the border of which two countries? What is the name of the UNESCO natural World Heritage site located in the Himalayas?