SortStack #3456 — 2035-11-25

By population · Order from fewest to most people.

1. Seats in the Sydney Opera House's main concert hall 2.7K

   The building's sails were so hard to engineer that the design pre-dated computers able to verify it.

2. Capacity of London's Royal Albert Hall 5.3K

   The Beatles, Einstein, and Muhammad Ali all appeared on its stage.

3. The population of Hong Kong 7.5M

   Has more skyscrapers than any other city on Earth — roughly double New York's count.

4. Greater Cairo, Egypt's capital region 22M

   Africa's largest metro area sits beside pyramids that were already ancient to Cleopatra.

5. The population of Italy 59M

   Home to the most UNESCO World Heritage sites of any country.

6. The population of Germany 84M

   The EU's most populous country — yet its capital is only its third-densest city.

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