Tower of Turtles is the World’s premier site for turtle and tower aficionados.
Please note that despite the presence of this picture...
… this site actually has nothing to do with ducks.
It’s Tower of Turtles. Tower of Ducks would just be silly.
If you are interested in the phrase 'tower of turtles' from an astrophysics or metaphysical perspective, there is an explanation of the concept here.
In any case, look closely at the comics on this site and you will find a wealth of astrophysical and metaphysical analysis. And also some funny turtles.