Is this normal behavior for a little girl?

In the first picture she is literally doing a pull up (which I could not do to save my life) and in the second one she pushed the rocking chair over to the desk so she could climb up to reach the top of the desk. Pretty clever in my opinion. And what does she want to do once she can reach the top? Pull down, destroy, eat, rip, throw, etc. My little destructicon, she spends all day pulling the house a part and I spend all night putting it back together. Good thing she is so very cute.....