A pair of polarizing sunglasses helped me out to block the specularly reflected sunlight just by covering up the camera lens. The gain is a much clearer picture in which the brownish sediment can be seen better. With this at hand, the founding fathers of Buenos Aires could have quickly noticed that there isn't silver at all. Instead, they have called this silver river. But thanks to this mistake we got this wonderful, exciting city.
What do you think is the funniest name mistake in history?