We opted to have a tour as the cable car was closed. This was our only opportunity inside the Rock, so I'm very glad we saw it. With some classical music and accents of colored lights, you may wander around; the place is truly gorgeous. As a concert venue it must be intimate and cozy; however, for the strolling visitor, it is quite impressive and delightful. It is a unique attraction. Be prepared for some steps, some dimness, and dampness -- and be prepared to find it more charming than you might think.