Ziva seemed as if she'd done this before, her actions seeming practiced as she investigated one of the glass cases. Gray didn't want to bother, since it seemed like whatever had happened here had happened a long time ago and there wasn't much left of interest.

"How about that one?" Gray suggested, pointing to the closest door to them, the one leading down to the lower floors. "We could start from the bottom and work our way up. You up for exploring the whole place?"