Tallest Lego building with 4 pieces

My daughter asked me: ‘Daddy, what’s the tallest structure we can build with those 4 pieces ?’

The only rule is “The structure needs to stand on its own.”

so here is one simple solution:

but we can do better:

and better

Now, stop !!!

Can you think how you would make it even higher ?

Well, below is our best solution.