My average density is so low, I'd float!
I spin upside down, and my "day" is longer than my year!
I have the tallest mountain and largest range of elevation of any planet.
I was once listed as a star on a star atlas!
If you stand in the right place at the right time, you can see "double" sunrises and sunsets.
The winds in my atmosphere are the strongest and fastest
Most of my surface is the youngest.
My storms last the longest.