- The coins thrown into the Trevi fountain in Italy are collected for charity.
- Some dinosaurs had tails over 13m (45 feet) long.
- Penguins mate for life and both parents care for their young.
- In France, it's illegal for employers to send emails after work hours.
- Powerful earthquakes can make the Earth spin faster.
- There are 132 rooms in the US White House.
- The Empire State Building in New York weighs over 365,000 tons.
- There is a pink lake in Australia named Lake Hillier.
- Along with arithmetic, geometry was one of the two fields of pre-modern mathematics.
- The Earth experiences over 50,000 earthquakes a year.
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