The highest toll paid by a ship to cross the Panama Canal was by the Crown Princess on May 2, 1993 in the amount of $141,349.97 U.S. funds.

Hummingbirds are the only animal that can fly backwards.

There was a post office on the Russian space station Mir. Visiting cosmonauts would use unique postal "markers" to stamp envelopes and other items as having flown aboard the Mir space station.

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