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What is it? It's a tower with a clock.
How old is it? It's about 150 years old.
Does it stop sometimes? They wind it up three times a week. It once stopped because of the snow on the clock's hands.
How big are the hands? The hour hand is 2.7 metres long and the minute хэнд is over 4 metres long. 
Where is it? It's in London. 
How tall is it? It's 100 metres long.
Why does it have coins on it? To help it tell the right time.
How does it work? It's a mechanical clock. They wind it up three times a week. There is a microphone inside the clock tower.