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This city is often called the ‘Mother City’. But which recognizable landmark have we blurred out?

Fact Lab

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Interesting fact:

Want to send post but hate doing it above ground? Then travel to Susami Bay, Japan, which features the world’s deepest postbox – 10 meters underwater! The post fox is used by divers using water-resistant postcards, and some 32,000 items of mail have been posted here.