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📅 On This Day: October 20

October 20, 1973: Sydney Opera House opens. On this day in 1973, the Sydney Opera House, with its seashell-like roofs, opened. It was designed by Danish architect Jørn Utzon and took 14 years to build. Its roofs are covered with more than a million white tiles.

📅 Sydney Opera House opens (1973)

Sydney Opera House

Where: Sydney, Australia

Read about Sydney Opera House → 📍 See it on the 3D globe

✨ More events on this day

🧠 Question of the day

What covers the roofs of the Sydney Opera House?

Show the answer

Answer: White tiles

🐾 World day: International Sloth Day

Sloths move so slowly that algae grows in their fur. The AIUNAU Foundation in Colombia started this day in 2010.

Questions

What happened on October 20?

October 20, 1973: Sydney Opera House opens. It happened in Sydney, Australia.

In the game, the "Today on Earth" panel shows this story on its day, with a question to answer and a place to fly to.

More days in October

Source: en.wikipedia.org/wiki/Sydney_Opera_House