Languages

Languages of Mongolia

Mongolia is the world’s most sparsely populated sovereign state — about 2 people per square kilometer (5.2 people per sq mi). But despite all that empty space, it fits ten languages inside its borders, from Kazakh in the far west to Tungusic-speaking Evenki communities in the north.

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Travel

Visa-Free Countries for US Citizens

The US passport held the top spot globally in 2006 and again in 2014. In October 2025 it fell out of the top ten for the first time in the Henley Passport Index’s 20-year history. Brazil ended visa-free access for Americans, China expanded its visa-free network to 76 countries while leaving Americans off it, and the US itself admits only 46 nationalities without a visa, ranking 77th globally on that measure.

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Cities

How Dense Is London?

With 9.1 million residents, London is the third most populous city in Europe. But those people are not spread evenly across the capital. Some outer suburbs have just 30–50 homes per hectare, while the most intensely residential inner pockets reach 240–435.

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