ampfixer
For some reason I don't think she's afraid of heights. 
Good catch! :)
We put it up together - I was just getting back from the other room putting on some music. But I often leave the ladder stuff to her.
The two baby cats are really doing a number on it. Especially Syd, the youngest one we've just adopted a few weeks ago. There are fake needles on the floor everywhere in the house, even upstairs... He likes to climb in it and play hide and seek with his sister. Or then just to throw decorations on the ground.
We love this house. And we appreciate it even more after those 2 years living in hotel rooms and small suites, and more particularly after the few months we spent in that dark and ugly little apartment when we arrived in Vegas. Moving up here, further away from the strip and to a much nicer part of the city and into this house really changed everything. That's when we started liking Vegas.