Lol!lol!
I had one...well, actually 2...like that. They went through the curtain climbing phase as adolescent kittens.
I love the expression on her face.
When my cats were at the 'big kitten' stage, I often had four of them doing that simultaneously! I've still not replaced some of the shredded curtains ;-)
I had some lovely pink velour curtains. They were peppered with holes by our climbing cat. With curtains drawn and the sun outside you could see thousands of holes.
My Tablo climbs onto the roofs of houses like that, Susan. She had me really scared the first time she got up there. Now I just accept that she likes sunbathing (and startling hunting) at heights ;-)