There are many natural wonders in the world, but here are some of the most unique:
Grand Canyon, USA: Carved by the Colorado River, the massive gorge stretches over 277 miles and is more than a mile deep.
Northern Lights, Norway, Finland, Sweden, Iceland, Canada, Russia and Alaska: This natural phenomenon, also known as the Aurora Borealis, occurs when charged particles from the sun collide with gases in the Earth's atmosphere, creating a colorful light show in the sky
Great Barrier Reef, Australia: This coral reef is the largest living structure in the world and is home to thousands of marine species.
Victoria Falls, Zambia/Zimbabwe: Located on the Zambia-Zimbabwe border, Victoria Falls is one of the largest waterfalls in the world and is known for its impressive size and roaring sound.
Moeraki Boulders, New Zealand: Giant spherical boulders found on a New Zealand beach are believed to have formed over 60 million years ago. Salar de Uyuni, Bolivia: This Bolivian salt flat is the largest in the world and creates a mesmerizing, reflective surface after rain.
Chocolate Hills, Philippines: These unusual geological formations in the Philippines consist of more than 1,000 perfectly formed hills, named for their brown color during the dry season.
Door to Hell, Turkmenistan: This fiery crater in Turkmenistan was formed when a natural gas field collapsed and caught fire in 1971 and has been burning ever since.
Zhangjiajie National Forest Park, China: This Chinese park is known for its towering vertical sandstone pillars that inspired the scenery of the movie Avatar.
These are just a few examples of the many unique natural wonders found around the world.