CNN praises Vietnam's 'Underground City': One of the most fascinating in the world!
Vietnam's Cu Chi Tunnels make the list.
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Vietnam's Cu Chi Tunnels make the list.
While hoping that the boom in electric vehicles and green energy will bring wealth, the people of this nation are apprehensive about repeating past mistakes.
A giant tree that has survived for thousands of years in a forest in southern Chile is about to be recognized as the world's oldest tree.
Spanning 2,820 km, the network of pipelines and channels belonging to the Giant River project is often described as the world's largest underground water system.
Titanoboa tops the list of largest snakes, weighing more than a ton and measuring 13 m in length.
Researchers estimate that the creature was about 20m long and weighed up to 340 tonnes, a mass that exceeds any other known animal on Earth.
If the Earth were the size of a marble, the Sun would be the size of a yoga ball, and the largest star in the universe has a diameter that would be hard to believe.
Although it is the largest object in the Solar System, the Sun is only average in size compared to the rest of the stars in the Milky Way galaxy.
Hidden in the Large Magellanic Cloud, a nebula just outside the Milky Way, lies what may be the largest known star in the entire universe.
This is also the world's largest cashew tree recognized by the Guinness Book of World Records, with a canopy covering an area of about 8,500 square meters.
In 2010, this pearl was recognized as the world's largest night pearl and was displayed at the Wenchang Baoyu Palace (Hainan, China).
The Three Gorges Dam could be dethroned as the king of hydropower dams if the planned Yarlung Zangbao dam is built with three times the installed capacity.
Scientists highly appreciate the research value of the fossils found here.
To protect the pink river dolphin, the world's largest river dolphin, scientists are working to decode the mysteries of its life and habitat...
Mount Olympus on Mars is the largest mountain in the Solar System and is believed to be the tallest of the eight planets.