Answer:
The more you look at it, The less you see.
The part of the bird, that is not in the sky, Which can swim in the ocean and always stay dry. What is it?
What is born on the ground but floats to the sky, to be returned back again from the clouds up high?
A gentleman whose offspring have successfully produced offspring of their own.
A setting that proved to be deadly for Abraham Lincoln.
It is something you will never see again.