Natural Wonders of the World (place)

Here are the seven that I've seen listed most often:

• The Grand Canyon in Arizona, United States
• The Great Barrier Reef off the coast of Australia
• Mount Everest in the Himalayas
• Victoria Falls on the Zambezi River, on the border of Zimbabwe and Zambia
• The harbor of Rio de Janeiro, Brazil
• Paricutin Volcano in Mexico
• The Northern Lights