Travel & Places

The movement or transfer of people from one location to another through a journey is travel. Planes and trains will take you far, but wherever you go, there you are! Whether you're traveling across a state or around the world, questions about locations, travel times, and anything related to traveling should be asked in this category. Happy traveling!

What is the biggest cave in the world?

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The biggest cave in the world is Sơn Đoòng cave in Vietnam. It has a volume of nearly 40 million cubic kilometers. Inside, there’s a river, two jungles, and a localized climate. It was discovered in the early 1990s, and nobody returned until 2009. A man named Ho Khanh first found it while hunting—he’d heard wind and the flow of the river inside. However, on return trips, he couldn’t find the cave again. He searched for it for years before he finally led researchers to it more than a decade later. Now, a limited number of people can explore it each year.