The stomach and digestive track section was the most interesting for me.  It's about 6 or 7 rooms, each focused on a different area of the body. It's super dark inside, and really quite, unlike the rest fo Vegas, so it was kind of a shocker in that sense. Would I have been ok if we didn't go check it out-sure, but if you're really into human anatomy, then you certainly will find it fascinating. FYI-If you're not staying at the Luxor they charge you a $6 processing fee on top of admission.