SortStack #1531 — 2030-08-18

By population · Order from fewest to most people.

1. Sitting United States senators 100

   Two per state since 1789 — the chamber only grows when a new state joins the union.

2. 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.

3. Athletes who competed at the Paris 2024 Olympics 10.5K

   The first Games with full gender parity: exactly half the quota places went to women.

4. Capacity of Rio de Janeiro's Maracanã stadium 78.8K

   For the 1950 World Cup final it crammed in roughly 200,000 — still the record football crowd.

5. Greater Shanghai 29M

   Its metro system, opened only in 1993, is already the longest in the world.

6. Christians worldwide 2.4B

   The world's largest religion — nearly a third of humanity across every continent.

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