Water-based Natural Wonders:
- Great Barrier Reef (Australia) -- The world's largest coral reef, extending over 1500 miles, it's a tropical marine paradise for divers.
- Victoria Falls (Zambia) -- Marvel at the 350 foot falls, swim in Devil's Pool at the bottom, and experience some of the world's best white-water rafting.
- Angel Falls (Venezuela) -- With a plunge of over 2600 feet, it's the world's highest uninterrupted waterfall.
Land-based Natural Wonders:
- Grand Canyon (Arizona) -- At 277 miles long, 18 miles wide, and 1 mile deep, its size and beauty is breathtaking.
- Bryce Canyon (Utah) -- The rim's elevation is almost 9k feet with amazing natural amphitheaters of red, white, and orange rock.
- Uluru / Ayers Rock (Australia) -- This remarkable natural rock formation stands over 1100 feet high and is almost 6 miles in circumference.
Other Natural Wonders:
- Northern Lights (Aurora Borealis) -- This amazing natural light display is best seen in the Nordic countries, Greenland, Canada, and Alaska.
- Perito Moreno Glacier (Argentina) -- 19 miles long and fed by water from the Andes, its one of the few glaciers in the world still advancing.