Here's my view on the 7 Natural Wonders of the World:
7. The Amazon rainforest
The Amazon rainforest spans the borders of eight countries. The Amazon River, the main artery of the rainforest, has more than 1,000 known tributaries, and 17 of those are at least 1,000 miles long.
6. The Grand Canyon, US
The 277-mile-long Grand Canyon is more than a mile deep. One of the top tourist attractions in the U.S., this canyon has been carved by the Colorado River over the last 6 million years. Years of erosion have shaped the canyon’s steep walls, exposing its red-hued rocks.
5. Angel Falls, Venezuela
The world’s tallest waterfall, Angel Falls in Venezuela, plunges 3,212 feet. This waterfall on the Rio Gauja is located deep within a dense jungle, so the best views are usually from the air.
4. Uluru, Australia
The large sandstone formation of Uluru (commonly known as Ayers Rock) rises 1,142 feet from the desert. This iconic monolith of Australia is one of the largest in the world, with a circumference of six miles.
3. Mud Volcano, Azerbaijan
Three hundred of the world’s 700 estimated Mud Volcanoes are located in Azerbaijan. These gurgling pots of bubbling mud are the result of underground gases and secreted liquids.
2. The Dead Sea, Israel and Jordan
The Dead Sea, located between Israel and Jordan, is one of the lowest points on Earth, almost 1,400 feet below sea level. This saltwater lake is 10 times saltier than the world’s oceans and is known for its therapeutic properties.
1. Great Barrier Reef, Australia
The Great Barrier Reef, off the coast of Queensland, Australia, is the world’s largest coral reef system, spanning a total area of about 14,300 square miles. This pristine haven is home to more than 1,500 species of fish, 200 species of birds and numerous species of whales, dolphins and sea turtles.