In the Netherlands, there are special traffic lanes for bicycles. There are approximately 17,000 kms of cycle lanes with special bicycle traffic lights.

The Sears Tower in Chicago contains enough steel to build 50,000 automobiles.

The word "limelight" that is used in theatre to refer to the performers on the stage originated because before electricity was available lime was burned in a lamp, which created a white light that was directed at the performers.

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